Radiant|Lab Grown|IGI

1.23ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG837640456

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

Certificate IGI LG837640456

Diamond specifications and retailer prices

From €160 EUR
$179 USD
As of October 30, 2026
Save €766 EUR (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €926 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct lab-grown radiant diamond

This 1.23ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837640456 or 837640456. Listed at 9 retailers as of October 30, 2026, with prices from €160 to €926, a €766 spread on the same certified stone. MOH London lists it at €926. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837640456
Dimensions7.57 × 5.26 × 3.60 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.57 mm5.26 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837640456
Side View
Table 64.0%Crown 43.5°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €926 EUR|Low: €152 EUR|High: €928 EUR|Avg: €642 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€152 EUR
Retailer 2€265 EUR
Retailer 7€334 EUR
Retailer 3€673 EUR
Retailer 4€686 EUR
Retailer 5€716 EUR
Retailer 8€796 EUR
MOH London€926 EUR

11 data points across 8 retailers

9 retailers€160 EUR to €926 EUR

Retailer 1
-
€152 EUR
$170 USD
Price last confirmed 30 days ago
A
Retailer 2
-
€160 EUR
$179 USD
View
A
Retailer 3
-
€265 EUR
£233 GBP
View
B+
Retailer 4
-
€613 EUR
$685 USD
View
Retailer 5
-
€630 EUR
$704 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
€673 EUR
$752 USD
View
B+
Retailer 7
-
€686 EUR
$766 USD
View
B+
Retailer 8
-
€716 EUR
$800 USD
View
Most Expensive
B
MOH London
LG837640456 · Nov 1
€926 EUR
£815 GBP
View
8 more retailers have this diamond
Prices start from €160 EURSave up to €766 EUR

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
1.23ct Radiant
€160 EUR