Emerald|Lab Grown|IGI

0.51ct D VS1 Emerald Lab Grown Diamond

VG • D/VS1 • IGI LG837660506

Shape and cutting style on the report: Emerald cut

Certificate IGI LG837660506

Diamond specifications and retailer prices

From $129 USD
As of October 27, 2026
Save $838 USD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,344 USD at MOH London · As of October 29, 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG837660506 or 837660506. Listed at 19 retailers as of October 27, 2026, with a 650% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837660506
Dimensions5.29 × 3.76 × 2.50 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.29 mm3.76 mm0.51 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837660506
Side View
Table 70.0%Crown 35.7°Girdle: MediumPavilion 33.3°Culet: LargeDepth 66.5%

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 27
Current: $1,344 USD|Low: $129 USD|High: $1,344 USD|Avg: $410 USD
MOH London
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 29, 2026
Retailer 9$129 USD
Retailer 5$144 USD
Retailer 7$160 USD
Retailer 18$160 USD
Retailer 17$215 USD
Retailer 16$230 USD
Retailer 11$267 USD
Retailer 2$278 USD
Retailer 14$286 USD
Retailer 12$289 USD
Retailer 4$387 USD
Retailer 13$408 USD
Retailer 3$489 USD
Retailer 8$515 USD
Retailer 15$544 USD
Retailer 10$571 USD
Retailer 6$967 USD
MOH London$1,344 USD

15 data points across 18 retailers

19 retailers$129 USD to $967 USD

A
Cheapest Retailer
-
$129 USD
A
Retailer 2
-
$144 USD
View
Final sale: no returns
A
Retailer 3
-
$160 USD
View
A
Retailer 4
-
$160 USD
View
A
Retailer 5
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$215 USD
View
B+
Retailer 6
-
$230 USD
View
B+
Retailer 7
-
$267 USD
£210 GBP
View
B+
Retailer 8
-
$278 USD
€265 EUR
View
B+
Retailer 9
-
$286 USD
A$440 AUD
View
B+
Retailer 10
-
$289 USD
ZAR 4,674 ZAR
View
B
Retailer 11
-
$370 USD
View
B
Retailer 12
-
$387 USD
View
B
Retailer 13
-
$408 USD
A$627 AUD
View
B
Retailer 14
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$489 USD
View
B
Retailer 15
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$515 USD
View
B
Retailer 16
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$544 USD
View
B
Retailer 17
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$571 USD
View
B
Retailer 18
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$967 USD
View
Most Expensive
B
MOH London
LG837660506 · Oct 29
$1,344 USD
£1,058 GBP
View
Price under review
18 more retailers have this diamond
Prices start from $129 USDSave up to $838 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
$129 USD