Radiant|Lab Grown|IGI

1.25ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG836664425

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

Certificate IGI LG836664425

Diamond specifications and retailer prices

From $221 USD
As of October 28, 2026
Save $1,009 USD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,230 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.25ct lab-grown radiant diamond

This 1.25ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG836664425 or 836664425. Listed at 14 retailers as of October 28, 2026, with prices from $221 to $1,230, a $1,009 spread on the same certified stone. Brilliant Earth lists it at $1,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836664425
Dimensions7.90 × 5.24 × 3.52 mm
L/W Ratio1.51
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.90 mm5.24 mm1.25 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836664425
Side View
Table 65.0%Crown 42.3°Girdle: MediumPavilion 34.4°Culet: NoneDepth 67.2%

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 28
Current: $1,230 USD|Low: $221 USD|High: $1,230 USD|Avg: $668 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
Retailer 14
October 29, 2026
Retailer 4$221 USD
Retailer 12$329 USD
Retailer 8$421 USD
Retailer 6$426 USD
Retailer 7$446 USD
Retailer 11$447 USD
Retailer 3$491 USD
Retailer 9$600 USD
Retailer 13$720 USD
Retailer 10$791 USD
Retailer 5$842 USD
Retailer 2$1,153 USD
Retailer 14$1,187 USD
Brilliant Earth$1,230 USD

20 data points across 14 retailers

14 retailers$221 USD to $1,230 USD

A
Cheapest Retailer
-
$221 USD
Final sale: no returns
A
Retailer 2
-
$329 USD
£259 GBP
View
Price last confirmed 12 days ago
A
Retailer 3
-
$421 USD
ZAR 6,806 ZAR
View
A
Retailer 4
-
$426 USD
View
A
Retailer 5
-
$446 USD
£351 GBP
View
A
Retailer 6
-
$447 USD
€426 EUR
View
B+
Retailer 7
-
$491 USD
View
B+
Retailer 8
-
$600 USD
A$923 AUD
View
B+
Retailer 9
-
$720 USD
View
Price last confirmed 10 days ago
B
Retailer 10
-
$791 USD
View
B
Retailer 11
-
$842 USD
View
B
Retailer 12
-
$1,153 USD
£908 GBP
View
B
Retailer 13
-
$1,187 USD
View
Most Expensive
B
Brilliant Earth
21756732A · Oct 28
$1,230 USD
View
13 more retailers have this diamond
Prices start from $221 USDSave up to $1,009 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
1.25ct Radiant
$221 USD