Emerald|Lab Grown|IGI

0.51ct D IF Emerald Lab Grown Diamond

EX • D/IF • IGI LG807644686

Shape and cutting style on the report: Emerald cut

Certificate IGI LG807644686

Diamond specifications and retailer prices

From $139 USD
As of October 29, 2026
Save $674 USD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $813 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct lab-grown emerald diamond

This 0.51ct lab-grown emerald sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG807644686 or 807644686. Listed at 20 retailers as of October 26, 2026, with prices from $139 to $813, a $674 spread on the same certified stone. MOH London lists it at $813. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807644686
Dimensions5.57 × 3.77 × 2.64 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.57 mm3.77 mm0.51 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807644686
Side View
Table 61.0%Crown 33.6°Girdle: STK-THKPavilion 42.9°Culet: LargeDepth 70.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $813 USD|Low: $139 USD|High: $836 USD|Avg: $384 USD|-2.7%
MOH London
Retailer 2
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Retailer 20
October 31, 2026
Retailer 15$139 USD
Retailer 4$155 USD
Retailer 9$162 USD
Retailer 19$173 USD
Retailer 6$174 USD
Retailer 10$235 USD
Retailer 14$295 USD
Retailer 3$313 USD
Retailer 18$335 USD
Retailer 20$337 USD
Retailer 8$422 USD
Retailer 5$442 USD
Retailer 13$473 USD
Retailer 11$480 USD
Retailer 12$520 USD
Retailer 16$544 USD
Retailer 7$558 USD
Retailer 2$587 USD
Retailer 17$611 USD
MOH London$813 USD

23 data points across 20 retailers

20 retailers$139 USD to $813 USD

A
Cheapest Retailer
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$139 USD
A
Retailer 2
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$155 USD
View
Final sale: no returns
A
Retailer 3
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$162 USD
View
A
Retailer 4
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$173 USD
View
A
Retailer 5
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$174 USD
View
A
Retailer 6
-
$235 USD
View
A
Retailer 7
-
$295 USD
£232 GBP
View
A
Retailer 8
-
$313 USD
ZAR 5,056 ZAR
View
B+
Retailer 9
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$335 USD
€319 EUR
View
A
Retailer 10
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$337 USD
View
B+
Retailer 11
-
$422 USD
A$649 AUD
View
B+
Retailer 12
-
$442 USD
A$680 AUD
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B+
Retailer 13
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$473 USD
View
B+
Retailer 14
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$480 USD
SGD 648 SGD
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B+
Retailer 15
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$520 USD
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B+
Retailer 16
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$544 USD
View
B+
Retailer 17
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$558 USD
View
B
Retailer 18
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$587 USD
View
B
Retailer 19
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$611 USD
View
Most Expensive
B
MOH London
LG807644686 · Oct 26
$813 USD
£640 GBP
View
19 more retailers have this diamond
Prices start from $139 USDSave up to $674 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Emerald
$139 USD