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Radiant|Lab Grown|IGI

1.73ct G VVS2 Radiant Lab Grown Diamond

ID • G/VVS2 • IGI LG645423221

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG645423221

Diamond specifications and retailer prices

From $369 NZD
$208 USD
As of October 30, 2026
Save $3,446 NZD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,815 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG645423221 or 645423221. Listed at 23 retailers as of October 30, 2026, with prices from $369 to $3,815, a $3,446 spread on the same certified stone. Brilliant Earth lists it at $3,815. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.7°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645423221
Dimensions7.98 × 5.87 × 4.27 mm
L/W Ratio1.36
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.98 mm5.87 mm1.73 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645423221
Side View
Table 72.0%Crown 46.7°Girdle: Slightly ThickPavilion 38.3°Culet: NoneDepth 72.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,815 NZD|Low: $358 NZD|High: $4,028 NZD|Avg: $1,334 NZD|+52.5%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 4$369 NZD
Retailer 3$412 NZD
Retailer 17$428 NZD
Retailer 7$458 NZD
Retailer 11$458 NZD
Retailer 9$683 NZD
Retailer 14$814 NZD
Retailer 2$872 NZD
Retailer 6$926 NZD
Retailer 13$937 NZD
Retailer 16$1,180 NZD
Retailer 18$1,325 NZD
Retailer 5$1,625 NZD
Retailer 15$1,863 NZD
Retailer 12$1,929 NZD
Retailer 20$1,987 NZD
Retailer 19$2,037 NZD
Retailer 10$2,164 NZD
Retailer 8$3,549 NZD
Brilliant Earth$3,815 NZD

37 data points across 20 retailers

23 retailers$369 NZD to $3,815 NZD

A
Cheapest Retailer
-
$369 NZD
$208 USD
A
Retailer 2
-
$412 NZD
$232 USD
View
Final sale: no returns
A
Retailer 3
-
$428 NZD
$241 USD
View
Retailer 4
-
$458 NZD
$258 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$458 NZD
$258 USD
View
B+
Retailer 6
-
$683 NZD
$385 USD
View
A
Retailer 7
-
$814 NZD
€437 EUR
View
A
Retailer 8
-
$872 NZD
ZAR 7,944 ZAR
View
A
Retailer 9
-
$877 NZD
$494 USD
View
A
Retailer 10
-
$926 NZD
$522 USD
View
A
Retailer 11
-
$937 NZD
£416 GBP
View
A
Retailer 12
-
$1,180 NZD
A$1,023 AUD
View
Retailer 13
-
$1,214 NZD
$684 USD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$1,325 NZD
$747 USD
View
B+
Retailer 15
-
$1,625 NZD
$916 USD
View
B+
Retailer 16
-
$1,863 NZD
$1,050 USD
View
B+
Retailer 17
-
$1,929 NZD
$1,087 USD
View
Retailer 18
-
$1,939 NZD
$1,093 USD
View
Price last confirmed 53 days ago
B+
Retailer 19
-
$1,987 NZD
$1,120 USD
View
B+
Retailer 20
-
$2,037 NZD
£904 GBP
View
B
Retailer 21
-
$2,164 NZD
$1,219 USD
View
B
Retailer 22
-
$3,549 NZD
$2,000 USD
View
Most Expensive
B
Brilliant Earth
16302039A · Oct 31
$3,815 NZD
$2,150 USD
View
22 more retailers have this diamond
Prices start from $369 NZDSave up to $3,446 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 Radiant
$369 NZD