Radiant|Lab Grown|IGI

1.28ct D VS2 Radiant Lab Grown Diamond

ID • D/VS2 • IGI LG836683260

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

Certificate IGI LG836683260

Diamond specifications and retailer prices

From $186 USD
As of October 27, 2026
Save $1,144 USD (86%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,330 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836683260 or 836683260. Listed at 5 retailers as of October 27, 2026, with prices from $186 to $1,330, a $1,144 spread on the same certified stone. Brilliant Earth lists it at $1,330. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836683260
Dimensions7.68 × 5.42 × 3.61 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.68 mm5.42 mm1.28 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836683260
Side View
Table 70.0%Crown 49.6°Girdle: Slightly ThickPavilion 39.3°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 27
Current: $1,330 USD|Low: $186 USD|High: $1,370 USD|Avg: $867 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 3$186 USD
Retailer 4$437 USD
Retailer 5$743 USD
Retailer 2$1,087 USD
Brilliant Earth$1,330 USD

11 data points across 5 retailers

5 retailers$186 USD to $1,330 USD

A
Cheapest Retailer
-
$186 USD
A
Retailer 2
-
$437 USD
€416 EUR
View
B+
Retailer 3
-
$743 USD
View
B
Retailer 4
-
$1,087 USD
£856 GBP
View
Most Expensive
B
Brilliant Earth
21634820A · Oct 29
$1,330 USD
View
4 more retailers have this diamond
Prices start from $186 USDSave up to $1,144 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
$186 USD