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Radiant|Lab Grown|IGI

1.51ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG539225590

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

Certificate IGI LG539225590

Diamond specifications and retailer prices

From $287 USD
As of November 1, 2026
Save $989 USD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,276 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG539225590 or 539225590. Listed at 18 retailers as of November 1, 2026, with prices from $287 to $1,276, a $989 spread on the same certified stone. MOH London lists it at $1,276. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539225590
Dimensions8.03 × 5.94 × 3.74 mm
L/W Ratio1.35
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.03 mm5.94 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539225590
Side View
Table 65.5%Crown 40.1°Girdle: MediumPavilion 33.9°Culet: NoneDepth 63.0%

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: Nov 1
Current: $1,276 USD|Low: $287 USD|High: $1,292 USD|Avg: $732 USD|-1.0%
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
November 1, 2026
Retailer 13$287 USD
Retailer 11$318 USD
Retailer 9$495 USD
Retailer 4$509 USD
Retailer 10$531 USD
Retailer 2$550 USD
Retailer 12$656 USD
Retailer 6$742 USD
Retailer 5$853 USD
Retailer 8$978 USD
Retailer 7$1,060 USD
Retailer 3$1,234 USD
MOH London$1,276 USD

22 data points across 13 retailers

18 retailers$287 USD to $1,276 USD

Retailer 1
-
$246 USD
Price last confirmed 31 days ago
A
Retailer 2
-
$287 USD
View
Final sale: no returns
Retailer 3
-
$298 USD
View
Price last confirmed 36 days ago
Retailer 4
-
$318 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
$495 USD
View
A
Retailer 6
-
$509 USD
View
A
Retailer 7
-
$531 USD
View
A
Retailer 8
-
$550 USD
ZAR 8,879 ZAR
View
B+
Retailer 9
-
$656 USD
View
B+
Retailer 10
-
$742 USD
A$1,142 AUD
View
B+
Retailer 11
-
$886 USD
£697 GBP
View
Retailer 12
-
$900 USD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
$978 USD
View
Retailer 14
-
$1,023 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$1,060 USD
View
B
Retailer 16
-
$1,075 USD
View
Retailer 17
-
$1,234 USD
£972 GBP
View
Price last confirmed 27 days ago
Most Expensive
B
MOH London
LG539225590 · Nov 1
$1,276 USD
£1,005 GBP
View
17 more retailers have this diamond
Prices start from $287 USDSave up to $989 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
1.51ct Radiant
$287 USD