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Cushion|Lab Grown|IGI

1.59ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG825630191

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

Certificate IGI LG825630191

Diamond specifications and retailer prices

From $621 NZD
£275 GBP
As of November 2, 2026
Save $1,733 NZD (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,608 NZD at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

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 LG825630191 or 825630191. Listed at 8 retailers as of November 2, 2026, with a 279% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825630191
Dimensions6.73 × 6.64 × 4.54 mm
L/W Ratio1.01
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
6.73 mm6.64 mm1.59 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825630191
Side View
Table 64.0%Crown 35.7°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 68.4%

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 2
Current: $3,608 NZD|Low: $618 NZD|High: $3,608 NZD|Avg: $1,664 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5$621 NZD
Retailer 8$963 NZD
Retailer 7$970 NZD
Retailer 9$978 NZD
Retailer 6$1,007 NZD
Retailer 12$1,200 NZD
Retailer 3$1,584 NZD
Retailer 4$1,797 NZD
Retailer 10$2,148 NZD
Retailer 2$2,354 NZD
Retailer 11$2,419 NZD
Brilliant Earth$3,608 NZD

24 data points across 12 retailers

8 retailers$621 NZD to $2,354 NZD

A
Cheapest Retailer
-
$621 NZD
£275 GBP
A
Retailer 2
-
$970 NZD
$546 USD
View
A
Retailer 3
-
$1,007 NZD
ZAR 9,154 ZAR
View
Retailer 4
-
$1,797 NZD
$1,011 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$2,148 NZD
A$1,859 AUD
View
Price last confirmed 29 days ago
Retailer 6
-
$2,354 NZD
£1,043 GBP
View
Retailer 7
-
$2,419 NZD
$1,361 USD
View
Price last confirmed 63 days ago
Most Expensive
Brilliant Earth
21214677A · Oct 8
$3,608 NZD
$2,030 USD
View
Price last confirmed 25 days ago
7 more retailers have this diamond
Prices start from $621 NZDSave up to $1,733 NZD

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
$621 NZD