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Radiant|Lab Grown|IGI

1.28ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG813657649

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

Certificate IGI LG813657649

Diamond specifications and retailer prices

From $223 USD
As of October 27, 2026
Save $943 USD (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,166 USD at MOH London · As of October 29, 2026
View at MOH London

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 LG813657649 or 813657649. Listed at 21 retailers as of October 27, 2026, with prices from $223 to $1,166, a $943 spread on the same certified stone. MOH London lists it at $1,166. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.6°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813657649
Dimensions7.30 × 5.46 × 3.72 mm
L/W Ratio1.34
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm5.46 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813657649
Side View
Table 67.0%Crown 25.6°Girdle: Slightly ThickPavilion 36.4°Culet: NoneDepth 68.1%

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 27
Current: $1,166 USD|Low: $217 USD|High: $1,167 USD|Avg: $593 USD|+3.5%
MOH London
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
October 30, 2026
Retailer 5$223 USD
Retailer 10$248 USD
Retailer 8$426 USD
Retailer 4$431 USD
Retailer 13$435 USD
Retailer 2$454 USD
Retailer 6$480 USD
Retailer 14$570 USD
Retailer 9$606 USD
Retailer 11$640 USD
Retailer 12$660 USD
Retailer 3$851 USD
Retailer 7$970 USD
MOH London$1,166 USD

41 data points across 14 retailers

21 retailers$223 USD to $1,166 USD

Retailer 1
-
$194 USD
Price last confirmed 30 days ago
Retailer 2
-
$199 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$223 USD
View
Final sale: no returns
Retailer 4
-
$225 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$238 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$247 USD
View
Price last confirmed 21 days ago
Retailer 7
-
$247 USD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$426 USD
ZAR 6,878 ZAR
View
A
Retailer 9
-
$431 USD
View
A
Retailer 10
-
$435 USD
€414 EUR
View
A
Retailer 11
-
$454 USD
£358 GBP
View
A
Retailer 12
-
$480 USD
View
B+
Retailer 13
-
$570 USD
View
B+
Retailer 14
-
$606 USD
A$932 AUD
View
B+
Retailer 15
-
$640 USD
View
Retailer 16
-
$660 USD
View
Price last confirmed 11 days ago
Retailer 17
-
$793 USD
View
Price last confirmed 22 days ago
B
Retailer 18
-
$797 USD
View
B
Retailer 19
-
$851 USD
View
B
Retailer 20
-
$970 USD
View
Most Expensive
B
MOH London
LG813657649 · Oct 29
$1,166 USD
£918 GBP
View
20 more retailers have this diamond
Prices start from $223 USDSave up to $943 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
$223 USD