Radiant|Lab Grown|IGI

1.51ct G VS2 Radiant Lab Grown Diamond

ID • G/VS2 • IGI LG537213181

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

Certificate IGI LG537213181

Diamond specifications and retailer prices

From $1,670 USD
As of October 29, 2026
Save $1,356 USD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,557 USD at Flawless Fine Jewelry · As of October 29, 2026
View at Flawless Fine Jewelry

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 G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG537213181 or 537213181. Listed at 16 retailers as of October 29, 2026, with a 81% 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
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537213181
Dimensions7.71 × 5.63 × 3.85 mm
L/W Ratio1.37
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
7.71 mm5.63 mm1.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537213181
Side View
Table 66.5%Crown 39.6°Girdle: ThickPavilion 32.3°Culet: NoneDepth 68.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $4,557 USD|Low: $1,670 USD|High: $6,368 USD|Avg: $3,304 USD
Flawless Fine Jewelry
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
October 30, 2026
Retailer 11$1,670 USD
Retailer 10$1,897 USD
Retailer 4$2,064 USD
Retailer 6$2,124 USD
Retailer 5$2,200 USD
Retailer 12$2,200 USD
Retailer 2$2,888 USD
Retailer 7$3,026 USD
Retailer 14$3,446 USD
Retailer 9$3,613 USD
Retailer 3$4,124 USD
Flawless Fine Jewelry$4,557 USD
Retailer 13$5,928 USD
Retailer 8$6,293 USD

44 data points across 14 retailers

16 retailers$1,670 USD to $3,026 USD

B
Cheapest Retailer
-
$1,670 USD
B
Retailer 2
-
$1,897 USD
View
B
Retailer 3
-
$2,064 USD
View
B
Retailer 4
-
$2,124 USD
View
Final sale: no returns
Retailer 5
-
$2,200 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$2,200 USD
View
B
Retailer 7
-
$2,370 USD
View
B
Retailer 8
-
$2,888 USD
£2,274 GBP
View
B
Retailer 9
-
$3,026 USD
£2,382 GBP
View
Retailer 10
-
$3,446 USD
View
Price under review
Retailer 11
-
$3,613 USD
View
Price under review
Retailer 12
-
$4,124 USD
View
Price under review
Most Expensive
Flawless Fine Jewelry
CE2002B56 · Oct 29
$4,557 USD
£3,588 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,670 USDSave up to $1,356 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
$1,670 USD