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Radiant|Lab Grown|IGI

3.15ct I VS1 Radiant Lab Grown Diamond

ID • I/VS1 • IGI LG653408706

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

Certificate IGI LG653408706

Diamond specifications and retailer prices

From £661 GBP
As of November 4, 2026
Save £1,355 GBP (67%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £2,016 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG653408706 or 653408706. Listed at 5 retailers as of November 4, 2026, with prices from £661 to £2,016, a £1,355 spread on the same certified stone. MOH London lists it at £2,016. 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

3.15
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle33.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653408706
Dimensions9.49 × 7.62 × 5.04 mm
L/W Ratio1.25
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.49 mm7.62 mm3.15 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653408706
Side View
Table 61.0%Crown 44.7°Girdle: Slightly ThickPavilion 33.6°Culet: NoneDepth 66.1%

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: Nov 4
Current: £2,016 GBP|Low: £587 GBP|High: £2,046 GBP|Avg: £1,127 GBP|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6£587 GBP
Retailer 3£661 GBP
Retailer 2£684 GBP
Retailer 4£689 GBP
Retailer 5£1,660 GBP
Retailer 7£1,662 GBP
MOH London£2,016 GBP

11 data points across 7 retailers

5 retailers£661 GBP to £2,016 GBP

A
Cheapest Retailer
-
£661 GBP
B+
Retailer 2
-
£684 GBP
View
A
Retailer 3
-
£689 GBP
View
B+
Retailer 4
-
£1,660 GBP
View
Most Expensive
B
MOH London
LG653408706 · Nov 5
£2,016 GBP
View
4 more retailers have this diamond
Prices start from £661 GBPSave up to £1,355 GBP

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
3.15ct Radiant
£661 GBP