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Radiant|Lab Grown|IGI

1.97ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG651489390

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

Certificate IGI LG651489390

Diamond specifications and retailer prices

From $1,053 CAD
£592 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $1,053 CAD 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG651489390 or 651489390. Listed at a single retailer as of October 28, 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.1°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651489390
Dimensions9.06 × 6.18 × 4.07 mm
L/W Ratio1.47
Culet sizePointed
Top View
9.06 mm6.18 mm1.97 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651489390
Side View
Table 66.0%Crown 43.1°Girdle: MediumPavilion 35.2°Culet: NoneDepth 65.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $596 CAD|Low: $211 CAD|High: $4,129 CAD|Avg: $1,738 CAD|-29.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
June 11, 2026
Retailer 7$550 CAD
Retailer 1$596 CAD
Retailer 5$740 CAD
Retailer 2$796 CAD
Retailer 3$974 CAD
Retailer 4$1,499 CAD
Retailer 6$4,073 CAD

66 data points across 7 retailers

1 retailer

B
Diamond Quarter
1.97SI1DLG906816N · Oct 28
$1,053 CAD
£592 GBP
View

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
$1,053 CAD