Radiant|Lab Grown|IGI

1.28ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG841654543

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

Certificate IGI LG841654543

Diamond specifications and retailer prices

From $187 USD
As of October 27, 2026
Save $906 USD (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,700 USD at Helzberg Diamonds · As of October 13, 2026
View at Helzberg 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG841654543 or 841654543. Listed at 21 retailers as of October 26, 2026, with a 485% 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
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841654543
Dimensions8.21 × 5.18 × 3.45 mm
L/W Ratio1.58
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.21 mm5.18 mm1.28 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841654543
Side View
Table 67.0%Crown 40.6°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 66.6%

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: Oct 27
Current: $232 USD|Low: $187 USD|High: $1,144 USD|Avg: $541 USD|-3.7%
Retailer 1
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
Retailer 13
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Retailer 20
October 29, 2026
Retailer 19$187 USD
Retailer 12$210 USD
Retailer 9$219 USD
Retailer 1$232 USD
Retailer 6$234 USD
Retailer 14$286 USD
Retailer 5$315 USD
Retailer 11$386 USD
Retailer 18$399 USD
Retailer 2$422 USD
Retailer 8$558 USD
Retailer 3$570 USD
Retailer 17$606 USD
Retailer 15$747 USD
Retailer 4$754 USD
Retailer 10$761 USD
Retailer 16$779 USD
Retailer 20$801 USD
Retailer 13$905 USD
Retailer 7$1,093 USD

16 data points across 20 retailers

21 retailers$187 USD to $1,093 USD

A+
Cheapest Retailer
-
$187 USD
A
Retailer 2
-
$210 USD
View
Final sale: no returns
A
Retailer 3
-
$219 USD
View
A
Retailer 4
-
$232 USD
View
A
Retailer 5
-
$234 USD
View
A
Retailer 6
-
$286 USD
£225 GBP
View
B+
Retailer 7
-
$315 USD
View
A
Retailer 8
-
$386 USD
€368 EUR
View
A
Retailer 9
-
$399 USD
ZAR 6,448 ZAR
View
A
Retailer 10
-
$422 USD
£332 GBP
View
A
Retailer 11
-
$558 USD
View
A
Retailer 12
-
$570 USD
A$877 AUD
View
B+
Retailer 13
-
$606 USD
View
B+
Retailer 14
-
$747 USD
View
B+
Retailer 15
-
$754 USD
View
B+
Retailer 16
-
$761 USD
SGD 1,029 SGD
View
B+
Retailer 17
-
$779 USD
View
B+
Retailer 18
-
$801 USD
View
B+
Retailer 19
-
$905 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
$1,093 USD
£861 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOKHMLKLKJ · Oct 13
$1,700 USD
View
Price last confirmed 16 days ago
20 more retailers have this diamond
Prices start from $187 USDSave up to $906 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
$187 USD