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Radiant|Lab Grown|IGI

1.20ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG731587272

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

Certificate IGI LG731587272

Diamond specifications and retailer prices

From $176 USD
As of November 2, 2026
Save $1,104 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,280 USD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.2ct lab-grown radiant diamond

This 1.2ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG731587272 or 731587272. Listed at 15 retailers as of November 2, 2026, with prices from $176 to $1,280, a $1,104 spread on the same certified stone. Do Amore Diamonds lists it at $1,280. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731587272
Dimensions7.78 × 5.23 × 3.48 mm
L/W Ratio1.49
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.78 mm5.23 mm1.20 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731587272
Side View
Table 64.0%Crown 39.5°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,280 USD|Low: $176 USD|High: $1,402 USD|Avg: $651 USD
Do Amore Diamonds
Retailer 2
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Retailer 22
November 4, 2026
Retailer 18$176 USD
Retailer 5$196 USD
Retailer 4$204 USD
Retailer 21$218 USD
Retailer 10$275 USD
Retailer 7$288 USD
Retailer 2$320 USD
Retailer 3$386 USD
Retailer 19$415 USD
Retailer 16$434 USD
Retailer 8$485 USD
Retailer 11$525 USD
Retailer 13$565 USD
Retailer 17$586 USD
Retailer 9$685 USD
Retailer 22$774 USD
Retailer 6$946 USD
Retailer 20$1,125 USD
Retailer 14$1,243 USD
Retailer 15$1,252 USD
Do Amore Diamonds$1,280 USD
Retailer 12$1,402 USD

6 data points across 22 retailers

15 retailers$176 USD to $1,280 USD

A
Cheapest Retailer
-
$176 USD
A
Retailer 2
-
$196 USD
View
Final sale: no returns
A
Retailer 3
-
$204 USD
View
A
Retailer 4
-
$218 USD
View
B+
Retailer 5
-
$288 USD
View
A
Retailer 6
-
$320 USD
View
A
Retailer 7
-
$386 USD
View
A
Retailer 8
-
$415 USD
View
A
Retailer 9
-
$434 USD
View
B+
Retailer 10
-
$565 USD
View
B+
Retailer 11
-
$586 USD
View
B+
Retailer 12
-
$774 USD
View
B
Retailer 13
-
$946 USD
View
B
Retailer 14
-
$1,125 USD
View
Most Expensive
B
Do Amore Diamonds
34-DB223-20D · Nov 4
$1,280 USD
View
14 more retailers have this diamond
Prices start from $176 USDSave up to $1,104 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
1.20ct Radiant
$176 USD