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 $203 USD
As of November 1, 2026
Save $850 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,070 USD 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 419% 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
Color
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 1
Current: $1,070 USD|Low: $203 USD|High: $1,087 USD|Avg: $576 USD|-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 2, 2026
Retailer 7$203 USD
Retailer 14$211 USD
Retailer 10$257 USD
Retailer 4$305 USD
Retailer 13$373 USD
Retailer 8$389 USD
Retailer 2$406 USD
Retailer 6$569 USD
Retailer 12$632 USD
Retailer 11$751 USD
Retailer 5$769 USD
Retailer 3$778 USD
Retailer 9$1,053 USD
Rare Carat$1,070 USD

18 data points across 14 retailers

14 retailers$203 USD to $1,053 USD

A+
Cheapest Retailer
-
$203 USD
Final sale: no returns
A
Retailer 2
-
$211 USD
View
A
Retailer 3
-
$257 USD
£202 GBP
View
B+
Retailer 4
-
$305 USD
View
A
Retailer 5
-
$373 USD
€355 EUR
View
A
Retailer 6
-
$389 USD
ZAR 6,282 ZAR
View
A
Retailer 7
-
$406 USD
£320 GBP
View
Retailer 8
-
$569 USD
A$876 AUD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$632 USD
View
B+
Retailer 10
-
$751 USD
View
B+
Retailer 11
-
$769 USD
View
B+
Retailer 12
-
$778 USD
View
B
Retailer 13
-
$1,053 USD
£829 GBP
View
Most Expensive
Rare Carat
CN373-20BA · Oct 18
$1,070 USD
View
Price last confirmed 14 days ago
13 more retailers have this diamond
Prices start from $203 USDSave up to $850 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
$203 USD