CaratHunter
Plans
Round|Lab Grown|IGI

3.10ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG652404408

Shape and cutting style on the report: Round brilliant

Certificate IGI LG652404408

Diamond specifications and retailer prices

From £371 GBP
As of November 4, 2026
Save £1,253 GBP (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,623 GBP at Rare Carat · As of November 4, 2026
View at Rare Carat

About this 3.1ct lab-grown round diamond

This 3.1ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG652404408 or 652404408. Listed at 7 retailers as of November 4, 2026, with prices from £371 to £1,623, a £1,253 spread on the same certified stone. Rare Carat lists it at £1,623. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.10
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG652404408
Dimensions9.37 × 9.42 × 5.71 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.37 mm9.42 mm3.10 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG652404408
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,623 GBP|Low: £371 GBP|High: £3,398 GBP|Avg: £1,139 GBP|+2.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5£371 GBP
Retailer 4£538 GBP
Retailer 7£539 GBP
Retailer 3£601 GBP
Retailer 6£835 GBP
Retailer 8£1,054 GBP
Retailer 2£1,314 GBP
Rare Carat£1,623 GBP
Retailer 9£3,398 GBP

9 data points across 9 retailers

7 retailers£371 GBP to £1,623 GBP

A
Cheapest Retailer
-
£371 GBP
Retailer 2
-
£538 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£539 GBP
View
A
Retailer 4
-
£601 GBP
View
B+
Retailer 5
-
£835 GBP
View
B
Retailer 6
-
£1,314 GBP
View
Most Expensive
B
Rare Carat
KI4084044KF652 · Nov 4
£1,623 GBP
$2,185 USD
View
6 more retailers have this diamond
Prices start from £371 GBPSave up to £1,253 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
£371 GBP