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Cushion|Lab Grown|IGI

3.10ct I SI1 Cushion Lab Grown Diamond

VG • I/SI1 • IGI LG523274722

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG523274722

Diamond specifications and retailer prices

From £710 GBP
As of November 6, 2026
Save £1,721 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,885 GBP at Ting Diamond · As of November 6, 2026
View at Ting Diamond

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG523274722 or 523274722. Listed at 7 retailers as of November 1, 2026, with a 242% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.10
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523274722
Dimensions8.55 × 8.06 × 5.04 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Top View
8.55 mm8.06 mm3.10 ctI / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523274722
Side View
Table 63.5%Crown 33.5°Girdle: THK-ETKPavilion 33.1°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £710 GBP|Low: £577 GBP|High: £6,885 GBP|Avg: £2,196 GBP|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Ting Diamond
November 4, 2026
Retailer 4£577 GBP
Retailer 1£710 GBP
Retailer 6£806 GBP
Retailer 5£941 GBP
Retailer 3£1,203 GBP
Retailer 2£2,430 GBP
Ting Diamond£6,885 GBP

21 data points across 7 retailers

7 retailers£710 GBP to £2,430 GBP

Retailer 1
-
£577 GBP
Price last confirmed 21 days ago
B+
Retailer 2
-
£710 GBP
View
B+
Retailer 3
-
£806 GBP
View
B+
Retailer 4
-
£941 GBP
View
B+
Retailer 5
-
£1,203 GBP
View
B
Retailer 6
-
£2,430 GBP
View
Most Expensive
Ting Diamond
9165593 · Nov 6
£6,885 GBP
HK$72,000 HKD
View
Price under review
6 more retailers have this diamond
Prices start from £710 GBPSave up to £1,721 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.

B+
3.10ct Cushion
£710 GBP