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Cushion|Lab Grown|IGI

1.59ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG400935021

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG400935021

Diamond specifications and retailer prices

From £1,405 GBP
$1,882 USD
As of November 1, 2026
Save £516 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,920 GBP at B2C Jewels · As of November 1, 2026
View at B2C Jewels

About this 1.59ct lab-grown cushion diamond

This 1.59ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG400935021 or 400935021. Listed at 2 retailers as of November 1, 2026, with prices from £1,405 to £1,920, a £516 spread on the same certified stone. B2C Jewels lists it at £1,920. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400935021
Dimensions7.02 × 6.66 × 4.28 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.02 mm6.66 mm1.59 ctH / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400935021
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £1,920 GBP|Low: £1,386 GBP|High: £1,920 GBP|Avg: £1,658 GBP
B2C Jewels
Retailer 2
November 1, 2026
Retailer 2£1,405 GBP
B2C Jewels£1,920 GBP

2 data points across 2 retailers

2 retailers£1,405 GBP to £1,920 GBP

B
Cheapest Retailer
-
£1,405 GBP
$1,882 USD
Most Expensive
C
B2C Jewels
21317953 · Nov 1
£1,920 GBP
$2,573 USD
View
1 more retailer has this diamond
Prices start from £1,405 GBPSave up to £516 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.

B
1.59ct Cushion
£1,405 GBP