Radiant|Lab Grown|IGI

1.28ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG591309411

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

Certificate IGI LG591309411

Diamond specifications and retailer prices

From $239 USD
As of November 4, 2026
Save $1,821 USD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,060 USD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591309411 or 591309411. Listed at 12 retailers as of November 4, 2026, with prices from $239 to $2,060, a $1,821 spread on the same certified stone. Do Amore Diamonds lists it at $2,060. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591309411
Dimensions7.82 × 5.35 × 3.62 mm
L/W Ratio1.46
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
7.82 mm5.35 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591309411
Side View
Table 66.0%Crown 42°Girdle: MediumPavilion 35.5°Culet: NoneDepth 67.7%

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: $2,060 USD|Low: $159 USD|High: $2,060 USD|Avg: $865 USD
Do Amore Diamonds
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
November 5, 2026
Retailer 6$159 USD
Retailer 12$239 USD
Retailer 4$401 USD
Retailer 10$455 USD
Retailer 2$549 USD
Retailer 11$586 USD
Retailer 7$718 USD
Retailer 9$857 USD
Retailer 13$1,066 USD
Retailer 14$1,113 USD
Retailer 8$1,174 USD
Retailer 3$1,238 USD
Retailer 5$1,460 USD
Do Amore Diamonds$2,060 USD

32 data points across 14 retailers

12 retailers$239 USD to $2,060 USD

A
Cheapest Retailer
-
$239 USD
Final sale: no returns
Retailer 2
-
$262 USD
View
Price last confirmed 42 days ago
A
Retailer 3
-
$401 USD
View
A
Retailer 4
-
$455 USD
View
B+
Retailer 5
-
$549 USD
View
B+
Retailer 6
-
$586 USD
View
B+
Retailer 7
-
$718 USD
View
B
Retailer 8
-
$857 USD
View
B
Retailer 9
-
$1,113 USD
View
B
Retailer 10
-
$1,174 USD
View
B
Retailer 11
-
$1,238 USD
View
Most Expensive
B
Do Amore Diamonds
27-4751BC99F · Nov 4
$2,060 USD
View
11 more retailers have this diamond
Prices start from $239 USDSave up to $1,821 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
1.28ct Radiant
$239 USD