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Round|Lab Grown|IGI

1.51ct J VS1 Round Lab Grown Diamond

ID • J/VS1 • IGI LG451057449

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057449

Diamond specifications and retailer prices

From $870 USD
As of October 30, 2026
Save $4,105 USD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,975 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG451057449 or 451057449. Listed at 12 retailers as of October 29, 2026, with prices from $870 to $4,975, a $4,105 spread on the same certified stone. MOH London lists it at $4,975. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
J
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057449
Dimensions7.37 × 7.32 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.37 mm7.32 mm1.51 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057449
Side View
Table 54.0%Crown 35.5°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.1%

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 30
Current: $4,975 USD|Low: $870 USD|High: $5,008 USD|Avg: $2,373 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$870 USD
Retailer 6$1,444 USD
Retailer 7$1,487 USD
Retailer 8$1,710 USD
Retailer 11$1,796 USD
Retailer 10$2,117 USD
Retailer 5$2,435 USD
Retailer 4$2,831 USD
Retailer 9$2,870 USD
Retailer 3$3,446 USD
MOH London$4,975 USD

18 data points across 11 retailers

12 retailers$870 USD to $4,975 USD

A
Cheapest Retailer
-
$870 USD
A
Retailer 2
-
$1,328 USD
View
B+
Retailer 3
-
$1,444 USD
View
B+
Retailer 4
-
$1,487 USD
View
Final sale: no returns
Retailer 5
-
$1,540 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,540 USD
View
B+
Retailer 7
-
$1,710 USD
View
B
Retailer 8
-
$2,435 USD
View
B
Retailer 9
-
$2,831 USD
ZAR 45,734 ZAR
View
B
Retailer 10
-
$2,870 USD
View
B
Retailer 11
-
$2,887 USD
View
Most Expensive
B
MOH London
LG451057449 · Oct 29
$4,975 USD
£3,917 GBP
View
11 more retailers have this diamond
Prices start from $870 USDSave up to $4,105 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 Round
$870 USD