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Radiant|Lab Grown|IGI

1.51ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG570363588

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

Certificate IGI LG570363588

Diamond specifications and retailer prices

From $183 USD
As of November 4, 2026
Save $990 USD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,173 USD at Flawless Fine Jewelry · As of November 4, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG570363588 or 570363588. Listed at 16 retailers as of November 4, 2026, with prices from $183 to $1,173, a $990 spread on the same certified stone. Flawless Fine Jewelry lists it at $1,173. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570363588
Dimensions7.83 × 5.80 × 3.79 mm
L/W Ratio1.35
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
7.83 mm5.80 mm1.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570363588
Side View
Table 61.0%Crown 39.9°Girdle: MediumPavilion 31.6°Culet: NoneDepth 65.3%

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 4
Current: $1,173 USD|Low: $175 USD|High: $1,204 USD|Avg: $536 USD|-2.5%
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
Retailer 15
Retailer 16
November 5, 2026
Retailer 13$183 USD
Retailer 5$212 USD
Retailer 6$227 USD
Retailer 14$227 USD
Retailer 8$256 USD
Retailer 11$374 USD
Retailer 10$391 USD
Retailer 3$399 USD
Retailer 4$468 USD
Retailer 7$486 USD
Retailer 9$528 USD
Retailer 16$729 USD
Retailer 12$770 USD
Retailer 15$944 USD
Retailer 2$1,056 USD
Flawless Fine Jewelry$1,173 USD

30 data points across 16 retailers

16 retailers$183 USD to $1,173 USD

A
Cheapest Retailer
-
$183 USD
A
Retailer 2
-
$212 USD
View
Retailer 3
-
$227 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$227 USD
View
A
Retailer 5
-
$256 USD
View
A
Retailer 6
-
$374 USD
View
A
Retailer 7
-
$391 USD
View
B+
Retailer 8
-
$399 USD
View
A
Retailer 9
-
$468 USD
View
A
Retailer 10
-
$486 USD
View
A
Retailer 11
-
$528 USD
View
B+
Retailer 12
-
$729 USD
View
B+
Retailer 13
-
$770 USD
View
B+
Retailer 14
-
$944 USD
View
B+
Retailer 15
-
$1,056 USD
View
Most Expensive
B
Flawless Fine Jewelry
0EC8B8240 · Nov 4
$1,173 USD
£924 GBP
View
15 more retailers have this diamond
Prices start from $183 USDSave up to $990 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
$183 USD