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Round|Lab Grown|IGI

1.51ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG500151241

Shape and cutting style on the report: Round brilliant

Certificate IGI LG500151241

Diamond specifications and retailer prices

From $880 USD
As of October 30, 2026
Save $4,095 USD (82%) 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 LG500151241 or 500151241. Listed at 12 retailers as of October 29, 2026, with prices from $880 to $4,975, a $4,095 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500151241
Dimensions7.30 × 7.25 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.30 mm7.25 mm1.51 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500151241
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: $880 USD|High: $5,008 USD|Avg: $2,271 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
Retailer 12
Retailer 13
October 30, 2026
Retailer 2$880 USD
Retailer 7$1,328 USD
Retailer 10$1,487 USD
Retailer 8$1,540 USD
Retailer 11$1,540 USD
Retailer 12$1,710 USD
Retailer 4$1,796 USD
Retailer 3$2,117 USD
Retailer 9$2,435 USD
Retailer 6$2,831 USD
Retailer 13$2,870 USD
Retailer 5$3,446 USD
MOH London$4,975 USD

18 data points across 13 retailers

12 retailers$880 USD to $4,975 USD

A
Cheapest Retailer
-
$880 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
B+
Retailer 5
-
$1,540 USD
View
Retailer 6
-
$1,540 USD
View
Price last confirmed 18 days ago
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
LG500151241 · Oct 29
$4,975 USD
£3,917 GBP
View
11 more retailers have this diamond
Prices start from $880 USDSave up to $4,095 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
$880 USD