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Cushion|Lab Grown|IGI

1.71ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG720525438

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG720525438

Diamond specifications and retailer prices

From £281 GBP
$377 USD
As of October 29, 2026
Save £2,196 GBP (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,478 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG720525438 or 720525438. Listed at 16 retailers as of October 29, 2026, with prices from £281 to £2,478, a £2,196 spread on the same certified stone. Do Amore Diamonds lists it at £2,478. 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 angle33.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720525438
Dimensions5.85 × 5.85 × 3.98 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.85 mm5.85 mm1.71 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720525438
Side View
Table 65.0%Crown 33.4°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 68.0%

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 29
Current: £2,478 GBP|Low: £196 GBP|High: £2,478 GBP|Avg: £759 GBP
Do Amore Diamonds
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 30, 2026
Retailer 6£196 GBP
Retailer 5£281 GBP
Retailer 2£384 GBP
Retailer 4£387 GBP
Retailer 13£391 GBP
Retailer 12£392 GBP
Retailer 15£416 GBP
Retailer 11£591 GBP
Retailer 8£621 GBP
Retailer 9£798 GBP
Retailer 14£939 GBP
Retailer 3£1,176 GBP
Retailer 7£1,212 GBP
Retailer 10£1,351 GBP
Do Amore Diamonds£2,478 GBP

25 data points across 15 retailers

16 retailers£281 GBP to £2,478 GBP

A
Cheapest Retailer
-
£281 GBP
$377 USD
Final sale: no returns
A
Retailer 2
-
£384 GBP
View
A
Retailer 3
-
£387 GBP
$519 USD
View
A
Retailer 4
-
£391 GBP
$524 USD
View
A
Retailer 5
-
£392 GBP
$525 USD
View
A
Retailer 6
-
£416 GBP
$557 USD
View
B+
Retailer 7
-
£591 GBP
ZAR 12,787 ZAR
View
B+
Retailer 8
-
£621 GBP
View
B+
Retailer 9
-
£798 GBP
A$1,645 AUD
View
Retailer 10
-
£939 GBP
A$1,936 AUD
View
Price last confirmed 26 days ago
B
Retailer 11
-
£1,176 GBP
$1,576 USD
View
B
Retailer 12
-
£1,212 GBP
$1,623 USD
View
B
Retailer 13
-
£1,222 GBP
$1,637 USD
View
B
Retailer 14
-
£1,351 GBP
View
B
Retailer 15
-
£2,232 GBP
$2,990 USD
View
Most Expensive
B
Do Amore Diamonds
23-720525438 · Oct 29
£2,478 GBP
$3,320 USD
View
15 more retailers have this diamond
Prices start from £281 GBPSave up to £2,196 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
£281 GBP