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Cushion|Lab Grown|IGI

1.59ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG825629627

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG825629627

Diamond specifications and retailer prices

From £407 GBP
$546 USD
As of November 1, 2026
Save £580 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,014 GBP at Rare Carat · As of August 31, 2026
View at Rare Carat

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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG825629627 or 825629627. Listed at 6 retailers as of October 29, 2026, with a 143% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825629627
Dimensions6.65 × 6.64 × 4.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.65 mm6.64 mm1.59 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825629627
Side View
Table 62.0%Crown 36.1°Girdle: STK-THKPavilion 37.5°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,014 GBP|Low: £355 GBP|High: £1,014 GBP|Avg: £635 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5£404 GBP
Retailer 4£407 GBP
Retailer 6£410 GBP
Retailer 2£422 GBP
Retailer 8£503 GBP
Retailer 9£664 GBP
Retailer 10£753 GBP
Retailer 7£900 GBP
Retailer 3£987 GBP
Rare Carat£1,014 GBP

26 data points across 10 retailers

6 retailers£407 GBP to £987 GBP

A
Cheapest Retailer
-
£407 GBP
$546 USD
A
Retailer 2
-
£422 GBP
ZAR 9,154 ZAR
View
Retailer 3
-
£753 GBP
$1,011 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£900 GBP
A$1,859 AUD
View
Price last confirmed 28 days ago
B
Retailer 5
-
£987 GBP
View
Most Expensive
Rare Carat
3S825629627 · Aug 31
£1,014 GBP
$1,361 USD
View
Price last confirmed 63 days ago
5 more retailers have this diamond
Prices start from £407 GBPSave up to £580 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
1.59ct Cushion
£407 GBP