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Radiant|Lab Grown|IGI

1.57ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG677503333

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

Certificate IGI LG677503333

Diamond specifications and retailer prices

From $947 CAD
£534 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $947 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 1.57ct lab-grown radiant diamond

This 1.57ct 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 very-good cut grade and certified by IGI LG677503333 or 677503333. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.4°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677503333
Dimensions8.17 × 5.67 × 3.87 mm
L/W Ratio1.44
Culet sizePointed
Top View
8.17 mm5.67 mm1.57 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677503333
Side View
Table 66.0%Crown 46.4°Girdle: MediumPavilion 34.6°Culet: NoneDepth 68.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $398 CAD|Low: $156 CAD|High: $1,264 CAD|Avg: $692 CAD|-27.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
June 17, 2026
Retailer 1$398 CAD
Retailer 5$567 CAD
Retailer 4$676 CAD
Retailer 3$718 CAD
Retailer 6$758 CAD
Retailer 2$965 CAD

72 data points across 6 retailers

1 retailer

B
Diamond Quarter
1.57SI1DLG33882EN · Oct 29
$947 CAD
£534 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
1.57ct Radiant
$947 CAD