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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG843601094

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

Certificate IGI LG843601094

Diamond specifications and retailer prices

From $258 SGD
As of November 4, 2026
Save $1,086 SGD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,367 SGD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG843601094 or 843601094. Listed at 14 retailers as of November 1, 2026, with a 421% 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

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843601094
Dimensions8.35 × 5.22 × 3.39 mm
L/W Ratio1.60
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.35 mm5.22 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843601094
Side View
Table 66.0%Crown 40.1°Girdle: MED-STKPavilion 34.8°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A+
Exceptional
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 4
Current: $1,367 SGD|Low: $258 SGD|High: $1,389 SGD|Avg: $732 SGD|-0.5%
Rare Carat
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 4, 2026
Retailer 7$258 SGD
Retailer 10$268 SGD
Retailer 2$326 SGD
Retailer 8$386 SGD
Retailer 6$475 SGD
Retailer 3$496 SGD
Retailer 9$510 SGD
Retailer 14$702 SGD
Retailer 5$808 SGD
Retailer 11$953 SGD
Retailer 12$972 SGD
Retailer 13$989 SGD
Retailer 4$1,344 SGD
Rare Carat$1,367 SGD

20 data points across 14 retailers

14 retailers$258 SGD to $1,344 SGD

A+
Cheapest Retailer
-
$258 SGD
Final sale: no returns
A
Retailer 2
-
$268 SGD
View
A
Retailer 3
-
$326 SGD
View
B+
Retailer 4
-
$386 SGD
View
A
Retailer 5
-
$475 SGD
View
A
Retailer 6
-
$496 SGD
View
A
Retailer 7
-
$510 SGD
View
A
Retailer 8
-
$702 SGD
View
B+
Retailer 9
-
$808 SGD
View
B+
Retailer 10
-
$953 SGD
View
B+
Retailer 11
-
$972 SGD
View
B+
Retailer 12
-
$989 SGD
View
B
Retailer 13
-
$1,344 SGD
View
Most Expensive
Rare Carat
CN373-20BA · Oct 18
$1,367 SGD
$1,070 USD
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from $258 SGDSave up to $1,086 SGD

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
$258 SGD