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Lab-Grown Diamonds/Man-Made Diamonds (MMD)

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Learn about and discuss everything on lab-grown diamonds here! No simulants (CZ, Moissanite, YAG, etc), please.

Featured Topics

bcmacdonald
Blog Lab-Grown Diamond Prices - June 2025
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3
Views
478
jstorm
bcmacdonald
Blog Best Places To Buy Lab-Grown Diamond Jewelry
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6
Views
6K
pinklemonadegurl
echelon6
Help me find a nice fancy vivid yellow step cut
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7
Views
208
Ibrakeforpossums
Ibrakeforpossums
echelon6
Opinion on these two Fancy Vivid Yellow Aschers please
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0
Views
102
echelon6
echelon6
diamondhoarder
Is this a good marquise?
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7
Views
240
Garry H (Cut Nut)
Garry H (Cut Nut)
the_mother_thing
LGD OEC Help Please
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5
Views
261
Rfisher
Rfisher
D
Opinions on this diamond
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29
Views
416
freddyboston
freddyboston
Summertime_girl
Opinions on these ovals
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5
Views
132
Summertime_girl
Summertime_girl
Summertime_girl
Opinion on HPHT
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9
Views
402
0-0-0
0-0-0
echelon6
Loosegrown so cheap! any alternatives?
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9
Views
624
Texas Leaguer
Texas Leaguer
S
Opinion on these cushion LGD
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2
Views
165
molecule
M
S
Sharing my custom 2.99 carat lab OEC by Ashley with SW cutters :)
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7
Views
541
0515vision
0
GemView
Do you trust preowned diamond jewelry to be correctly identified as lab vs. earth-mined these days?
2
Replies
33
Views
797
nala
nala
D
2ct round with halo to large?
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13
Views
299
diverg
D
H
Show me your large (5+ carat) diamonds! Bonus points for antique cuts
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29
Views
2K
Halogirl1130
Halogirl1130
MrsT
What can I learn from this video
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28
Views
661
DejaWiz
DejaWiz
Lynniiee
Help me narrow down this list of lab ovals?
Replies
15
Views
371
Lynniiee
Lynniiee
ShinyPink
Assistance with Blue LGD
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4
Views
167
ShinyPink
ShinyPink
P
GCAL diamonds
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11
Views
475
Summertime_girl
Summertime_girl
Z
Thoughts on this oval diamond for engagement ring?
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2
Views
177
DejaWiz
DejaWiz
C
Upgrade little round help
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12
Views
231
cashton13
C
M
4 carat round brilliant: Whiteflash, Ada, JP
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2
Views
329
MackPUK
M
R
Need help finding emerald cut
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1
Views
129
rjmr
R
L
Looking for 3 carat (6 ct total) lab grown round studs
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0
Views
138
lhaiat
L
N
Which oval diamond is better?
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8
Views
360
Nikac11
N
A
Round solitaire suggestions!
3 4 5 6
Replies
159
Views
4K
Matthews1127
Matthews1127
echelon6
Understanding fancy colors
Replies
3
Views
185
Rockdiamond
Rockdiamond
1
Thoughts and opinion on this pear lab diamond for an engagement ring.
Replies
0
Views
130
1anddone
1
Halogirl1130
Help finding OMC or OEC lab diamond
Replies
0
Views
154
Halogirl1130
Halogirl1130
Summertime_girl
Opinions on LG oval diamond
Replies
1
Views
137
MissGotRocks
MissGotRocks
R
Need help findind 1:4 ratio old mine cushion
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2
Views
143
rjmr
R
G
Finding lab diamonds to match natural I color round
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0
Views
116
greenteabiscuit
G
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