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Cushion|Lab Grown|IGI

1.71ct F VS2 Cushion Lab Grown Diamond

EX • F/VS2 • IGI LG673424712

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG673424712

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of November 1, 2026
Save £798 GBP (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £991 GBP at Brilliant Earth · As of October 31, 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 F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG673424712 or 673424712. Listed at 16 retailers as of October 31, 2026, with prices from £193 to £991, a £798 spread on the same certified stone. Brilliant Earth lists it at £991. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG673424712
Dimensions8.92 × 6.05 × 3.97 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.92 mm6.05 mm1.71 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG673424712
Side View
Table 63.0%Crown 35.2°Girdle: MED-STKPavilion 35.9°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 1
Current: £991 GBP|Low: £186 GBP|High: £1,013 GBP|Avg: £537 GBP|-2.2%
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
November 2, 2026
Retailer 11£193 GBP
Retailer 2£289 GBP
Retailer 14£315 GBP
Retailer 15£328 GBP
Retailer 4£358 GBP
Retailer 12£374 GBP
Retailer 9£450 GBP
Retailer 7£513 GBP
Retailer 16£599 GBP
Retailer 13£750 GBP
Retailer 10£786 GBP
Retailer 8£838 GBP
Retailer 5£884 GBP
Retailer 6£910 GBP
Retailer 3£963 GBP
Brilliant Earth£991 GBP

32 data points across 16 retailers

16 retailers£193 GBP to £991 GBP

A
Cheapest Retailer
-
£193 GBP
$259 USD
Final sale: no returns
A
Retailer 2
-
£289 GBP
View
A
Retailer 3
-
£315 GBP
HK$3,300 HKD
View
B+
Retailer 4
-
£328 GBP
$440 USD
View
A
Retailer 5
-
£358 GBP
$481 USD
View
A
Retailer 6
-
£374 GBP
€478 EUR
View
A
Retailer 7
-
£450 GBP
View
Retailer 8
-
£513 GBP
$689 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
£599 GBP
$804 USD
View
B
Retailer 10
-
£750 GBP
$1,007 USD
View
B+
Retailer 11
-
£786 GBP
$1,055 USD
View
Retailer 12
-
£838 GBP
View
Price last confirmed 22 days ago
B
Retailer 13
-
£884 GBP
$1,187 USD
View
B
Retailer 14
-
£910 GBP
SGD 1,650 SGD
View
B
Retailer 15
-
£963 GBP
$1,292 USD
View
Most Expensive
B
Brilliant Earth
22255766Y · Oct 31
£991 GBP
$1,330 USD
View
15 more retailers have this diamond
Prices start from £193 GBPSave up to £798 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
£193 GBP