Cushion|Lab Grown|IGI

3.10ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG713578322

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

Certificate IGI LG713578322

Diamond specifications and retailer prices

From £395 GBP
$529 USD
As of October 29, 2026
Save £1,241 GBP (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,187 GBP at Brilliant Earth · As of October 19, 2026
View at Brilliant Earth

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG713578322 or 713578322. Listed at 16 retailers as of October 29, 2026, with a 314% 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
D
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG713578322
Dimensions8.54 × 8.43 × 5.60 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
8.54 mm8.43 mm3.10 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG713578322
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 66.4%

Caratlytics Score

How it works →
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: Oct 29
Current: £3,187 GBP|Low: £395 GBP|High: £3,403 GBP|Avg: £1,184 GBP|-5.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 6£395 GBP
Retailer 9£455 GBP
Retailer 15£550 GBP
Retailer 16£661 GBP
Retailer 7£683 GBP
Retailer 11£692 GBP
Retailer 17£716 GBP
Retailer 2£720 GBP
Retailer 10£924 GBP
Retailer 12£949 GBP
Retailer 4£1,082 GBP
Retailer 5£1,428 GBP
Retailer 8£1,540 GBP
Retailer 13£1,608 GBP
Retailer 3£1,636 GBP
Retailer 14£2,288 GBP
Brilliant Earth£3,187 GBP

38 data points across 17 retailers

16 retailers£395 GBP to £1,636 GBP

A
Cheapest Retailer
-
£395 GBP
$529 USD
Final sale: no returns
Retailer 2
-
£550 GBP
View
Price last confirmed 15 days ago
B+
Retailer 3
-
£661 GBP
$885 USD
View
B+
Retailer 4
-
£683 GBP
$915 USD
View
A
Retailer 5
-
£692 GBP
€883 EUR
View
B+
Retailer 6
-
£716 GBP
$959 USD
View
A
Retailer 7
-
£720 GBP
View
B+
Retailer 8
-
£924 GBP
A$1,904 AUD
View
A
Retailer 9
-
£949 GBP
ZAR 20,549 ZAR
View
B+
Retailer 10
-
£1,082 GBP
$1,450 USD
View
B+
Retailer 11
-
£1,428 GBP
$1,913 USD
View
B
Retailer 12
-
£1,540 GBP
$2,063 USD
View
B
Retailer 13
-
£1,608 GBP
View
B
Retailer 14
-
£1,636 GBP
$2,192 USD
View
Retailer 15
-
£2,288 GBP
$3,065 USD
View
Price last confirmed 10 days ago
Most Expensive
Brilliant Earth
14871511A · Oct 19
£3,187 GBP
$4,270 USD
View
Price last confirmed 12 days ago
15 more retailers have this diamond
Prices start from £395 GBPSave up to £1,241 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
£395 GBP