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Cushion|Lab Grown|IGI

3.10ct G VVS1 Cushion Lab Grown Diamond

EX • G/VVS1 • IGI LG770624314

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG770624314

Diamond specifications and retailer prices

From £678 GBP
As of November 4, 2026
Save £946 GBP (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,948 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG770624314 or 770624314. Listed at 13 retailers as of November 3, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770624314
Dimensions8.38 × 8.29 × 5.44 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
8.38 mm8.29 mm3.10 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770624314
Side View
Table 58.0%Crown 32.8°Girdle: MED-THKPavilion 36.9°Culet: NoneDepth 65.6%

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 4
Current: £2,948 GBP|Low: £477 GBP|High: £2,978 GBP|Avg: £1,212 GBP|-1.0%
Rare Carat
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 5£477 GBP
Retailer 9£678 GBP
Retailer 11£678 GBP
Retailer 12£710 GBP
Retailer 6£713 GBP
Retailer 7£919 GBP
Retailer 8£942 GBP
Retailer 13£1,035 GBP
Retailer 3£1,264 GBP
Retailer 4£1,417 GBP
Retailer 2£1,590 GBP
Retailer 10£1,624 GBP
Rare Carat£2,948 GBP

44 data points across 13 retailers

13 retailers£678 GBP to £1,624 GBP

Retailer 1
-
£477 GBP
Price last confirmed 20 days ago
B+
Retailer 2
-
£678 GBP
View
A
Retailer 3
-
£678 GBP
View
A
Retailer 4
-
£710 GBP
View
A
Retailer 5
-
£713 GBP
View
A
Retailer 6
-
£919 GBP
View
A
Retailer 7
-
£942 GBP
View
A
Retailer 8
-
£1,035 GBP
View
B+
Retailer 9
-
£1,264 GBP
View
B+
Retailer 10
-
£1,417 GBP
View
B+
Retailer 11
-
£1,590 GBP
View
B+
Retailer 12
-
£1,624 GBP
View
Most Expensive
Rare Carat
SC2-9C_l_770624314 · Oct 21
£2,948 GBP
$3,980 USD
View
Price last confirmed 14 days ago
12 more retailers have this diamond
Prices start from £678 GBPSave up to £946 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
£678 GBP