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Cushion|Lab Grown|IGI

1.73ct H VVS2 Cushion Lab Grown Diamond

ID • H/VVS2 • IGI LG620421291

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG620421291

Diamond specifications and retailer prices

From $483 NZD
$272 USD
As of October 30, 2026
Save $1,806 NZD (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,289 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.73ct lab-grown cushion diamond

This 1.73ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG620421291 or 620421291. Listed at 12 retailers as of October 30, 2026, with prices from $483 to $2,289, a $1,806 spread on the same certified stone. Brilliant Earth lists it at $2,289. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
H
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620421291
Dimensions8.23 × 6.42 × 4.35 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.23 mm6.42 mm1.73 ctH / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620421291
Side View
Table 58.0%Crown 34°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
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: $2,289 NZD|Low: $470 NZD|High: $2,466 NZD|Avg: $1,195 NZD|-7.2%
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
November 1, 2026
Retailer 13$483 NZD
Retailer 2$640 NZD
Retailer 11$719 NZD
Retailer 5$843 NZD
Retailer 7$919 NZD
Retailer 6$959 NZD
Retailer 12$995 NZD
Retailer 3$1,118 NZD
Retailer 8$1,247 NZD
Retailer 10$1,336 NZD
Retailer 4$1,811 NZD
Retailer 9$2,145 NZD
Brilliant Earth$2,289 NZD

40 data points across 13 retailers

12 retailers$483 NZD to $2,289 NZD

A
Cheapest Retailer
-
$483 NZD
$272 USD
Final sale: no returns
A
Retailer 2
-
$640 NZD
£284 GBP
View
B+
Retailer 3
-
$719 NZD
$405 USD
View
A
Retailer 4
-
$919 NZD
ZAR 8,364 ZAR
View
A
Retailer 5
-
$959 NZD
€515 EUR
View
A
Retailer 6
-
$995 NZD
$561 USD
View
A
Retailer 7
-
$1,118 NZD
$630 USD
View
A
Retailer 8
-
$1,247 NZD
A$1,081 AUD
View
B+
Retailer 9
-
$1,336 NZD
$753 USD
View
B+
Retailer 10
-
$1,811 NZD
$1,021 USD
View
B+
Retailer 11
-
$2,145 NZD
£952 GBP
View
Most Expensive
B+
Brilliant Earth
11234971A · Oct 31
$2,289 NZD
$1,290 USD
View
11 more retailers have this diamond
Prices start from $483 NZDSave up to $1,806 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
1.73ct Cushion
$483 NZD