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Cushion|Lab Grown|IGI

3.10ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG843641957

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG843641957

Diamond specifications and retailer prices

From £1,081 GBP
$1,449 USD
As of October 31, 2026
Save £2,916 GBP (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,997 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843641957 or 843641957. Listed at 11 retailers as of October 30, 2026, with prices from £1,081 to £3,997, a £2,916 spread on the same certified stone. Taylor and Hart lists it at £3,997. 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
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle43.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843641957
Dimensions11.75 × 7.58 × 5.12 mm
L/W Ratio1.55
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.75 mm7.58 mm3.10 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843641957
Side View
Table 53.0%Crown 38.3°Girdle: MED-STKPavilion 43.3°Culet: LargeDepth 67.5%

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: Oct 31
Current: £1,265 GBP|Low: £1,081 GBP|High: £3,997 GBP|Avg: £2,260 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Taylor and Hart
October 31, 2026
Retailer 2£1,081 GBP
Retailer 7£1,204 GBP
Retailer 1£1,265 GBP
Retailer 9£1,484 GBP
Retailer 4£1,639 GBP
Retailer 8£1,690 GBP
Retailer 3£2,643 GBP
Retailer 6£3,473 GBP
Retailer 5£3,677 GBP
Taylor and Hart£3,997 GBP

4 data points across 10 retailers

11 retailers£1,081 GBP to £3,997 GBP

A
Cheapest Retailer
-
£1,081 GBP
$1,449 USD
B+
Retailer 2
-
£1,204 GBP
HK$12,600 HKD
View
B+
Retailer 3
-
£1,265 GBP
$1,695 USD
View
B+
Retailer 4
-
£1,484 GBP
$1,988 USD
View
B+
Retailer 5
-
£1,639 GBP
€2,091 EUR
View
B
Retailer 6
-
£1,690 GBP
$2,265 USD
View
B
Retailer 7
-
£2,643 GBP
ZAR 57,208 ZAR
View
B
Retailer 8
-
£2,746 GBP
$3,680 USD
View
B
Retailer 9
-
£3,473 GBP
SGD 6,288 SGD
View
B
Retailer 10
-
£3,677 GBP
View
Most Expensive
B
Taylor and Hart
IIYY2A4 · Oct 30
£3,997 GBP
$5,356 USD
View
10 more retailers have this diamond
Prices start from £1,081 GBPSave up to £2,916 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 Cushion
£1,081 GBP