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Radiant|Lab Grown|IGI

1.97ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG658490635

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

Certificate IGI LG658490635

Diamond specifications and retailer prices

From $1,348 NZD
£598 GBP
As of October 31, 2026
2 retailers carry this diamond
Most expensive: $2,989 NZD at Rare Carat
View at Rare Carat

About this 1.97ct lab-grown radiant diamond

This 1.97ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG658490635 or 658490635. Listed at 2 retailers as of October 31, 2026. 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

1.97
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658490635
Dimensions8.79 × 6.13 × 4.12 mm
L/W Ratio1.43
Culet sizePointed
Top View
8.79 mm6.13 mm1.97 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658490635
Side View
Table 67.0%Crown 46°Girdle: MediumPavilion 35.9°Culet: NoneDepth 67.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $770 NZD|Low: $271 NZD|High: $5,234 NZD|Avg: $1,668 NZD|-28.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
June 11, 2026
Retailer 6$702 NZD
Retailer 1$770 NZD
Retailer 9$861 NZD
Retailer 5$951 NZD
Retailer 2$1,018 NZD
Retailer 3$1,254 NZD
Retailer 8$1,393 NZD
Retailer 4$1,902 NZD
Retailer 7$5,163 NZD

66 data points across 9 retailers

2 retailers

B+
Cheapest Retailer
-
$1,348 NZD
£598 GBP
Most Expensive
Rare Carat
658490635
$2,989 NZD
$1,685 USD
View
1 more retailer has this diamond
Prices start from $1,348 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.

B+
1.97ct Radiant
$1,348 NZD