CaratHunter
Plans
Radiant|Lab Grown|IGI

1.51ct I VS2 Radiant Lab Grown Diamond

ID • I/VS2 • IGI LG512225948

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

Certificate IGI LG512225948

Diamond specifications and retailer prices

From $1,360 USD
As of October 31, 2026
Save $1,823 USD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,876 USD at MOH London · As of October 29, 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 I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512225948 or 512225948. Listed at 11 retailers as of October 31, 2026, with a 134% 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
I
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle29.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512225948
Dimensions7.91 × 5.36 × 3.78 mm
L/W Ratio1.48
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
7.91 mm5.36 mm1.51 ctI / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512225948
Side View
Table 67.0%Crown 45°Girdle: STK-THKPavilion 29.5°Culet: NoneDepth 70.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,876 USD|Low: $1,360 USD|High: $4,915 USD|Avg: $2,581 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 29, 2026
Retailer 2$1,360 USD
Retailer 4$1,464 USD
Retailer 8$1,593 USD
Retailer 5$1,698 USD
Retailer 10$1,870 USD
Retailer 3$2,304 USD
Retailer 6$2,677 USD
Retailer 11$3,082 USD
Retailer 7$3,183 USD
Retailer 9$4,100 USD
MOH London$4,876 USD

14 data points across 11 retailers

11 retailers$1,360 USD to $3,183 USD

B
Cheapest Retailer
-
$1,360 USD
B
Retailer 2
-
$1,464 USD
View
B
Retailer 3
-
$1,593 USD
View
Retailer 4
-
$1,698 USD
View
Price last confirmed 19 days ago
B
Retailer 5
-
$1,698 USD
View
B
Retailer 6
-
$1,870 USD
View
B
Retailer 7
-
$2,677 USD
View
B
Retailer 8
-
$3,082 USD
View
B
Retailer 9
-
$3,183 USD
View
Retailer 10
-
$4,100 USD
£3,228 GBP
View
Price under review
Most Expensive
MOH London
LG512225948 · Oct 29
$4,876 USD
£3,839 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $1,360 USDSave up to $1,823 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.

B
1.51ct Radiant
$1,360 USD