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Radiant|Lab Grown|IGI

1.97ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG639481055

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

Certificate IGI LG639481055

Diamond specifications and retailer prices

From $945 SGD
£581 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: $945 SGD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639481055 or 639481055. Listed at a single retailer as of November 5, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639481055
Dimensions8.76 × 6.06 × 4.18 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.76 mm6.06 mm1.97 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639481055
Side View
Table 61.0%Crown 47.3°Girdle: MediumPavilion 34.4°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: Nov 5
Current: $545 SGD|Low: $191 SGD|High: $3,281 SGD|Avg: $1,201 SGD|-22.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
June 11, 2026
Retailer 7$490 SGD
Retailer 1$545 SGD
Retailer 5$657 SGD
Retailer 6$729 SGD
Retailer 2$892 SGD
Retailer 9$955 SGD
Retailer 4$1,585 SGD
Retailer 3$1,617 SGD
Retailer 8$3,230 SGD

69 data points across 9 retailers

1 retailer

B+
Diamond Quarter
1.97SI1FLG5506E3N · Nov 5
$945 SGD
£581 GBP
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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
$945 SGD