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Radiant|Lab Grown|IGI

1.51ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG638430098

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

Certificate IGI LG638430098

Diamond specifications and retailer prices

From $206 USD
As of October 27, 2026
Save $819 USD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,025 USD at MOH London · As of November 2, 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 LG638430098 or 638430098. Listed at 18 retailers as of October 27, 2026, with prices from $206 to $1,025, a $819 spread on the same certified stone. MOH London lists it at $1,025. 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 angle40.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638430098
Dimensions8.04 × 5.69 × 3.76 mm
L/W Ratio1.41
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.04 mm5.69 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638430098
Side View
Table 62.0%Crown 40.3°Girdle: MED-STKPavilion 35°Culet: NoneDepth 66.1%

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 27
Current: $1,025 USD|Low: $205 USD|High: $1,073 USD|Avg: $619 USD|-3.6%
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
November 2, 2026
Retailer 3$206 USD
Retailer 13$231 USD
Retailer 15$239 USD
Retailer 7$265 USD
Retailer 14$345 USD
Retailer 11$442 USD
Retailer 9$466 USD
Retailer 16$492 USD
Retailer 12$511 USD
Retailer 10$596 USD
Retailer 2$668 USD
Retailer 6$860 USD
Retailer 4$876 USD
Retailer 5$970 USD
Retailer 8$1,006 USD
MOH London$1,025 USD

28 data points across 16 retailers

18 retailers$206 USD to $1,025 USD

A
Cheapest Retailer
-
$206 USD
A
Retailer 2
-
$231 USD
View
Final sale: no returns
A
Retailer 3
-
$239 USD
View
A
Retailer 4
-
$256 USD
View
Retailer 5
-
$265 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$265 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$345 USD
View
A
Retailer 8
-
$442 USD
ZAR 7,135 ZAR
View
A
Retailer 9
-
$466 USD
€444 EUR
View
A
Retailer 10
-
$492 USD
View
A
Retailer 11
-
$511 USD
View
A
Retailer 12
-
$596 USD
A$917 AUD
View
A
Retailer 13
-
$668 USD
View
Retailer 14
-
$851 USD
View
Price last confirmed 8 days ago
Retailer 15
-
$860 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
$876 USD
View
B+
Retailer 17
-
$970 USD
View
Most Expensive
B+
MOH London
LG638430098 · Nov 2
$1,025 USD
£807 GBP
View
17 more retailers have this diamond
Prices start from $206 USDSave up to $819 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
$206 USD