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Radiant|Lab Grown|IGI

1.51ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG536296802

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

Certificate IGI LG536296802

Diamond specifications and retailer prices

From $188 USD
As of November 2, 2026
Save $966 USD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,250 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

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 LG536296802 or 536296802. Listed at 21 retailers as of November 1, 2026, with a 514% 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

1.51
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG536296802
Dimensions8.12 × 5.51 × 3.80 mm
L/W Ratio1.47
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
8.12 mm5.51 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG536296802
Side View
Table 65.5%Crown 45.8°Girdle: Slightly ThickPavilion 36°Culet: NoneDepth 69.0%

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 2
Current: $1,250 USD|Low: $180 USD|High: $1,270 USD|Avg: $575 USD|-1.6%
Brilliant Earth
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
November 3, 2026
Retailer 9$188 USD
Retailer 6$210 USD
Retailer 19$218 USD
Retailer 18$233 USD
Retailer 3$315 USD
Retailer 4$333 USD
Retailer 2$370 USD
Retailer 15$402 USD
Retailer 13$428 USD
Retailer 12$478 USD
Retailer 5$485 USD
Retailer 14$542 USD
Retailer 17$556 USD
Retailer 11$651 USD
Retailer 8$748 USD
Retailer 7$802 USD
Retailer 10$930 USD
Retailer 16$1,087 USD
Retailer 20$1,154 USD
Brilliant Earth$1,250 USD

37 data points across 20 retailers

21 retailers$188 USD to $1,154 USD

A
Cheapest Retailer
-
$188 USD
A
Retailer 2
-
$210 USD
View
Final sale: no returns
A
Retailer 3
-
$218 USD
View
Retailer 4
-
$233 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$315 USD
View
A
Retailer 6
-
$333 USD
HK$2,600 HKD
View
B+
Retailer 7
-
$370 USD
View
A
Retailer 8
-
$402 USD
ZAR 6,487 ZAR
View
A
Retailer 9
-
$428 USD
€408 EUR
View
A
Retailer 10
-
$485 USD
View
A
Retailer 11
-
$542 USD
A$834 AUD
View
A
Retailer 12
-
$556 USD
View
B+
Retailer 13
-
$731 USD
£575 GBP
View
B+
Retailer 14
-
$748 USD
View
B+
Retailer 15
-
$750 USD
View
B+
Retailer 16
-
$802 USD
View
Retailer 17
-
$930 USD
£732 GBP
View
Price last confirmed 15 days ago
B
Retailer 18
-
$1,010 USD
CA$1,403 CAD
View
B+
Retailer 19
-
$1,087 USD
£856 GBP
View
B+
Retailer 20
-
$1,154 USD
View
Most Expensive
Brilliant Earth
16080889A · Oct 16
$1,250 USD
View
Price last confirmed 18 days ago
20 more retailers have this diamond
Prices start from $188 USDSave up to $966 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
$188 USD