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Radiant|Lab Grown|IGI

1.97ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG650494953

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

Certificate IGI LG650494953

Diamond specifications and retailer prices

From £573 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: £1,259 GBP 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 LG650494953 or 650494953. Listed at 2 retailers as of October 29, 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 angle43°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650494953
Dimensions8.90 × 6.07 × 4.19 mm
L/W Ratio1.47
Culet sizePointed
Top View
8.90 mm6.07 mm1.97 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650494953
Side View
Table 66.0%Crown 43°Girdle: MediumPavilion 35.6°Culet: NoneDepth 69.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £330 GBP|Low: £116 GBP|High: £2,202 GBP|Avg: £701 GBP|-27.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
June 11, 2026
Retailer 6£300 GBP
Retailer 1£330 GBP
Retailer 9£362 GBP
Retailer 5£407 GBP
Retailer 2£431 GBP
Retailer 3£512 GBP
Retailer 8£586 GBP
Retailer 4£801 GBP
Retailer 7£2,172 GBP

66 data points across 9 retailers

2 retailers

B+
Cheapest Retailer
-
£573 GBP
Most Expensive
Rare Carat
650494953
£1,259 GBP
$1,687 USD
View
1 more retailer has this diamond
Prices start from £573 GBP

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
£573 GBP