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Cushion|Lab Grown|IGI

1.71ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG702514338

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG702514338

Diamond specifications and retailer prices

From £228 GBP
$305 USD
As of October 30, 2026
Save £1,325 GBP (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,552 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG702514338 or 702514338. Listed at 23 retailers as of October 30, 2026, with prices from £228 to £1,552, a £1,325 spread on the same certified stone. Brilliant Earth lists it at £1,552. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702514338
Dimensions8.69 × 6.09 × 3.91 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.69 mm6.09 mm1.71 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702514338
Side View
Table 59.0%Crown 33.8°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 64.2%

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: Oct 30
Current: £1,552 GBP|Low: £253 GBP|High: £1,709 GBP|Avg: £685 GBP|-9.2%
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
October 31, 2026
Retailer 4£253 GBP
Retailer 5£340 GBP
Retailer 9£369 GBP
Retailer 2£415 GBP
Retailer 12£434 GBP
Retailer 8£445 GBP
Retailer 7£454 GBP
Retailer 11£588 GBP
Retailer 15£645 GBP
Retailer 3£875 GBP
Retailer 6£899 GBP
Retailer 13£990 GBP
Retailer 14£1,015 GBP
Retailer 10£1,019 GBP
Brilliant Earth£1,552 GBP

38 data points across 15 retailers

23 retailers£228 GBP to £1,552 GBP

A
Cheapest Retailer
-
£228 GBP
$305 USD
Final sale: no returns
A
Retailer 2
-
£253 GBP
$339 USD
View
A
Retailer 3
-
£277 GBP
HK$2,900 HKD
View
B+
Retailer 4
-
£340 GBP
$455 USD
View
A
Retailer 5
-
£369 GBP
$495 USD
View
A
Retailer 6
-
£399 GBP
€509 EUR
View
A
Retailer 7
-
£415 GBP
€530 EUR
View
A
Retailer 8
-
£434 GBP
ZAR 9,405 ZAR
View
A
Retailer 9
-
£445 GBP
View
A
Retailer 10
-
£454 GBP
$608 USD
View
A
Retailer 11
-
£490 GBP
$657 USD
View
B+
Retailer 12
-
£588 GBP
A$1,212 AUD
View
B+
Retailer 13
-
£645 GBP
$864 USD
View
B+
Retailer 14
-
£787 GBP
$1,055 USD
View
B+
Retailer 15
-
£811 GBP
SGD 1,469 SGD
View
B+
Retailer 16
-
£851 GBP
$1,140 USD
View
Retailer 17
-
£875 GBP
A$1,804 AUD
View
Price last confirmed 23 days ago
B
Retailer 18
-
£899 GBP
$1,205 USD
View
B
Retailer 19
-
£990 GBP
View
Retailer 20
-
£1,015 GBP
$1,360 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£1,019 GBP
View
B
Retailer 22
-
£1,065 GBP
$1,427 USD
View
Most Expensive
B
Brilliant Earth
13917450A · Oct 30
£1,552 GBP
$2,080 USD
View
22 more retailers have this diamond
Prices start from £228 GBPSave up to £1,325 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
£228 GBP