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Cushion|Lab Grown|IGI

1.71ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG588361173

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG588361173

Diamond specifications and retailer prices

From £179 GBP
$240 USD
As of October 29, 2026
Save £612 GBP (77%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £791 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown cushion diamond

This 1.71ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG588361173 or 588361173. Listed at 6 retailers as of October 29, 2026, with prices from £179 to £791, a £612 spread on the same certified stone. Brilliant Earth lists it at £791. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588361173
Dimensions7.77 × 6.25 × 4.34 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.77 mm6.25 mm1.71 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588361173
Side View
Table 63.0%Crown 36.6°Girdle: MED-THKPavilion 34.2°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £791 GBP|Low: £155 GBP|High: £1,006 GBP|Avg: £591 GBP|-17.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6£179 GBP
Retailer 2£334 GBP
Retailer 8£438 GBP
Retailer 7£448 GBP
Retailer 3£488 GBP
Retailer 11£509 GBP
Retailer 4£537 GBP
Retailer 5£749 GBP
Brilliant Earth£791 GBP
Retailer 10£860 GBP
Retailer 9£1,006 GBP

15 data points across 11 retailers

6 retailers£179 GBP to £791 GBP

A
Cheapest Retailer
-
£179 GBP
$240 USD
Final sale: no returns
A
Retailer 2
-
£334 GBP
€426 EUR
View
A
Retailer 3
-
£448 GBP
$600 USD
View
B+
Retailer 4
-
£537 GBP
$720 USD
View
B
Retailer 5
-
£749 GBP
$1,004 USD
View
Most Expensive
B+
Brilliant Earth
14534135A · Oct 30
£791 GBP
$1,060 USD
View
5 more retailers have this diamond
Prices start from £179 GBPSave up to £612 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
1.71ct Cushion
£179 GBP