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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 €607 EUR
£534 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: €607 EUR 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 31, 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 31
Current: €255 EUR|Low: €100 EUR|High: €810 EUR|Avg: €443 EUR|-27.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
June 17, 2026
Retailer 1€255 EUR
Retailer 5€363 EUR
Retailer 4€433 EUR
Retailer 3€460 EUR
Retailer 6€485 EUR
Retailer 2€619 EUR

72 data points across 6 retailers

1 retailer

B
Diamond Quarter
1.57SI1DLG33882EN · Oct 31
€607 EUR
£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
€607 EUR