Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG844646123

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

Certificate IGI LG844646123

Diamond specifications and retailer prices

From $198 USD
As of October 31, 2026
Save $992 USD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,190 USD at Brilliant Earth · As of October 31, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844646123 or 844646123. Listed at 13 retailers as of October 31, 2026, with prices from $198 to $1,190, a $992 spread on the same certified stone. Brilliant Earth lists it at $1,190. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.7°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844646123
Dimensions7.56 × 5.29 × 3.59 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.56 mm5.29 mm1.28 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844646123
Side View
Table 66.0%Crown 26.7°Girdle: Slightly ThickPavilion 35.8°Culet: NoneDepth 67.9%

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: Oct 31
Current: $1,190 USD|Low: $198 USD|High: $1,190 USD|Avg: $563 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 6$198 USD
Retailer 10$215 USD
Retailer 13$265 USD
Retailer 2$357 USD
Retailer 7$373 USD
Retailer 11$377 USD
Retailer 9$470 USD
Retailer 5$525 USD
Retailer 3$686 USD
Retailer 8$717 USD
Retailer 4$1,006 USD
Retailer 12$1,099 USD
Brilliant Earth$1,190 USD

22 data points across 13 retailers

13 retailers$198 USD to $1,190 USD

A
Cheapest Retailer
-
$198 USD
A
Retailer 2
-
$215 USD
View
Final sale: no returns
A
Retailer 3
-
$265 USD
£209 GBP
View
A
Retailer 4
-
$357 USD
€340 EUR
View
A
Retailer 5
-
$373 USD
£294 GBP
View
B+
Retailer 6
-
$377 USD
View
A
Retailer 7
-
$470 USD
View
Retailer 8
-
$525 USD
A$808 AUD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$686 USD
A$1,056 AUD
View
B+
Retailer 10
-
$717 USD
View
B
Retailer 11
-
$1,006 USD
£792 GBP
View
B
Retailer 12
-
$1,099 USD
View
Most Expensive
B
Brilliant Earth
22340780A · Oct 31
$1,190 USD
View
12 more retailers have this diamond
Prices start from $198 USDSave up to $992 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
$198 USD