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Round|Lab Grown|IGI

3.10ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG508123875

Shape and cutting style on the report: Round brilliant

Certificate IGI LG508123875

Diamond specifications and retailer prices

From £439 GBP
As of November 5, 2026
Save £1,920 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,359 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 3.1ct lab-grown round diamond

This 3.1ct lab-grown round sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508123875 or 508123875. Listed at 16 retailers as of November 5, 2026, with prices from £439 to £2,359, a £1,920 spread on the same certified stone. MOH London lists it at £2,359. 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

3.10
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508123875
Dimensions9.37 × 9.33 × 5.70 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.37 mm9.33 mm3.10 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508123875
Side View
Table 60.5%Crown 34.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

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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 5
Current: £2,359 GBP|Low: £439 GBP|High: £2,394 GBP|Avg: £1,165 GBP|-0.3%
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
November 5, 2026
Retailer 10£439 GBP
Retailer 12£492 GBP
Retailer 4£589 GBP
Retailer 7£643 GBP
Retailer 11£749 GBP
Retailer 9£837 GBP
Retailer 13£897 GBP
Retailer 2£1,183 GBP
Retailer 5£1,252 GBP
Retailer 8£1,352 GBP
Retailer 3£1,762 GBP
Retailer 6£1,909 GBP
MOH London£2,359 GBP

26 data points across 13 retailers

16 retailers£439 GBP to £2,359 GBP

A
Cheapest Retailer
-
£439 GBP
A
Retailer 2
-
£492 GBP
View
Final sale: no returns
A
Retailer 3
-
£492 GBP
View
A
Retailer 4
-
£545 GBP
View
Retailer 5
-
£545 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£589 GBP
View
A
Retailer 7
-
£643 GBP
View
B+
Retailer 8
-
£749 GBP
View
B+
Retailer 9
-
£837 GBP
View
B+
Retailer 10
-
£897 GBP
View
B+
Retailer 11
-
£1,183 GBP
View
B
Retailer 12
-
£1,352 GBP
View
B
Retailer 13
-
£1,433 GBP
View
B
Retailer 14
-
£1,762 GBP
View
B
Retailer 15
-
£1,909 GBP
View
Most Expensive
B
MOH London
LG508123875 · Nov 5
£2,359 GBP
View
15 more retailers have this diamond
Prices start from £439 GBPSave up to £1,920 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
3.10ct Round
£439 GBP