Radiant|Lab Grown|IGI

0.51ct D VS2 Radiant Lab Grown Diamond

ID • D/VS2 • IGI LG812647981

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG812647981

Diamond specifications and retailer prices

From $139 USD
As of October 30, 2026
Save $745 USD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,372 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812647981 or 812647981. Listed at 9 retailers as of October 29, 2026, with a 536% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812647981
Dimensions6.07 × 3.86 × 2.57 mm
L/W Ratio1.57
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.07 mm3.86 mm0.51 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812647981
Side View
Table 67.0%Crown 37.7°Girdle: MED-STKPavilion 35°Culet: NoneDepth 66.6%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $1,372 USD|Low: $133 USD|High: $1,386 USD|Avg: $472 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5$139 USD
Retailer 9$161 USD
Retailer 6$172 USD
Retailer 11$247 USD
Retailer 2$297 USD
Retailer 8$322 USD
Retailer 4$395 USD
Retailer 3$480 USD
Retailer 7$554 USD
Retailer 12$555 USD
Retailer 10$884 USD
MOH London$1,372 USD

41 data points across 12 retailers

9 retailers$139 USD to $884 USD

A
Cheapest Retailer
-
$139 USD
A
Retailer 2
-
$161 USD
View
A
Retailer 3
-
$172 USD
View
B+
Retailer 4
-
$297 USD
£234 GBP
View
B+
Retailer 5
-
$322 USD
View
B
Retailer 6
-
$554 USD
View
B
Retailer 7
-
$555 USD
View
B
Retailer 8
-
$884 USD
£696 GBP
View
Most Expensive
MOH London
LG812647981 · Oct 26
$1,372 USD
£1,080 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $139 USDSave up to $745 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 Radiant
$139 USD