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Radiant|Lab Grown|IGI

0.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG782654831

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

Certificate IGI LG782654831

Diamond specifications and retailer prices

From $100 USD
As of October 23, 2026
Save $776 USD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $919 USD at MOH London · As of October 19, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782654831 or 782654831. Listed at 20 retailers as of October 23, 2026, with a 776% 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle50.4°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782654831
Dimensions5.57 × 4.05 × 2.56 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.57 mm4.05 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG782654831
Side View
Table 66.0%Crown 50.4°Girdle: MediumPavilion 34.7°Culet: NoneDepth 63.2%

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 23
Current: $919 USD|Low: $99 USD|High: $1,092 USD|Avg: $345 USD|-14.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 29, 2026
Retailer 4$100 USD
Retailer 10$112 USD
Retailer 17$117 USD
Retailer 9$133 USD
Retailer 3$141 USD
Retailer 19$215 USD
Retailer 16$221 USD
Retailer 20$228 USD
Retailer 14$240 USD
Retailer 8$253 USD
Retailer 18$283 USD
Retailer 15$340 USD
Retailer 2$349 USD
Retailer 13$350 USD
Retailer 6$355 USD
Retailer 5$400 USD
Retailer 12$410 USD
Retailer 11$655 USD
Retailer 7$876 USD
MOH London$919 USD

41 data points across 20 retailers

20 retailers$100 USD to $876 USD

A
Cheapest Retailer
-
$100 USD
A
Retailer 2
-
$112 USD
View
Final sale: no returns
A
Retailer 3
-
$117 USD
View
A
Retailer 4
-
$133 USD
View
A
Retailer 5
-
$141 USD
HK$1,100 HKD
View
A
Retailer 6
-
$215 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$221 USD
ZAR 3,578 ZAR
View
A
Retailer 8
-
$228 USD
€217 EUR
View
A
Retailer 9
-
$240 USD
£189 GBP
View
B+
Retailer 10
-
$253 USD
View
B+
Retailer 11
-
$283 USD
View
B+
Retailer 12
-
$340 USD
£268 GBP
View
B+
Retailer 13
-
$349 USD
SGD 471 SGD
View
B+
Retailer 14
-
$350 USD
View
B+
Retailer 15
-
$355 USD
View
B+
Retailer 16
-
$400 USD
View
B
Retailer 17
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$410 USD
View
B
Retailer 18
-
$655 USD
£516 GBP
View
B
Retailer 19
-
$876 USD
View
Most Expensive
B
MOH London
LG782654831 · Oct 19
$919 USD
£724 GBP
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from $100 USDSave up to $776 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
$100 USD