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Radiant|Lab Grown|IGI

1.63ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG614309946

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

Certificate IGI LG614309946

Diamond specifications and retailer prices

From $275 NZD
$155 USD
As of October 27, 2026
Save $2,369 NZD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,644 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.63ct lab-grown radiant diamond

This 1.63ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG614309946 or 614309946. Listed at 10 retailers as of October 27, 2026, with prices from $275 to $2,644, a $2,369 spread on the same certified stone. Do Amore Diamonds lists it at $2,644. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.63
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614309946
Dimensions8.56 × 5.77 × 3.83 mm
L/W Ratio1.48
Culet sizeNone
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
8.56 mm5.77 mm1.63 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614309946
Side View
Table 64.0%Crown 39°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 66.4%

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 27
Current: $2,644 NZD|Low: $275 NZD|High: $2,786 NZD|Avg: $1,252 NZD|-5.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 8$275 NZD
Retailer 6$318 NZD
Retailer 13$325 NZD
Retailer 10$623 NZD
Retailer 3$730 NZD
Retailer 4$1,077 NZD
Retailer 7$1,155 NZD
Retailer 9$1,208 NZD
Retailer 11$1,263 NZD
Retailer 5$1,635 NZD
Retailer 2$1,767 NZD
Retailer 12$1,845 NZD
Do Amore Diamonds$2,644 NZD

22 data points across 13 retailers

10 retailers$275 NZD to $2,644 NZD

A
Cheapest Retailer
-
$275 NZD
$155 USD
A
Retailer 2
-
$318 NZD
$179 USD
View
A
Retailer 3
-
$325 NZD
$183 USD
View
Final sale: no returns
B+
Retailer 4
-
$623 NZD
$351 USD
View
B+
Retailer 5
-
$1,155 NZD
$651 USD
View
B+
Retailer 6
-
$1,208 NZD
$681 USD
View
B+
Retailer 7
-
$1,263 NZD
$712 USD
View
B+
Retailer 8
-
$1,767 NZD
£784 GBP
View
B
Retailer 9
-
$1,845 NZD
$1,040 USD
View
Most Expensive
B
Do Amore Diamonds
27-3D76ACC31 · Oct 29
$2,644 NZD
$1,490 USD
View
9 more retailers have this diamond
Prices start from $275 NZDSave up to $2,369 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
1.63ct Radiant
$275 NZD