Radiant|Lab Grown|IGI

3.11ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG536210926

Shape and cutting style on the report: Radiant cut

Certificate IGI LG536210926

Diamond specifications and retailer prices

From $668 USD
As of October 30, 2026
Save $704 USD (51%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,674 USD at MOH London · As of October 15, 2026
View at MOH London

About this 3.11ct lab-grown radiant diamond

This 3.11ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG536210926 or 536210926. Listed at 5 retailers as of October 30, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.11
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG536210926
Dimensions9.59 × 7.67 × 5.21 mm
L/W Ratio1.25
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
9.59 mm7.67 mm3.11 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG536210926
Side View
Table 63.5%Crown 33.6°Girdle: MediumPavilion 37.5°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 30
Current: $1,674 USD|Low: $555 USD|High: $1,676 USD|Avg: $1,113 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 24, 2026
Retailer 3$668 USD
Retailer 5$733 USD
Retailer 4$1,123 USD
Retailer 2$1,372 USD
MOH London$1,674 USD

11 data points across 5 retailers

5 retailers$668 USD to $1,372 USD

B+
Cheapest Retailer
-
$668 USD
A
Retailer 2
-
$733 USD
View
A
Retailer 3
-
$1,123 USD
View
B+
Retailer 4
-
$1,372 USD
View
Most Expensive
MOH London
LG536210926 · Oct 15
$1,674 USD
£1,318 GBP
View
Price last confirmed 17 days ago
4 more retailers have this diamond
Prices start from $668 USDSave up to $704 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
3.11ct Radiant
$668 USD