Radiant|Lab Grown|IGI

4.03ct D SI1 Radiant Lab Grown Diamond

VG • D/SI1 • IGI LG680555170

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

Certificate IGI LG680555170

Diamond specifications and retailer prices

From $1,995 USD
£1,570 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,995 USD 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 4.03ct lab-grown radiant diamond

This 4.03ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG680555170 or 680555170. 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

4.03
Carat
D
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680555170
Dimensions10.82 × 7.82 × 5.37 mm
L/W Ratio1.38
Culet sizePointed
Top View
10.82 mm7.82 mm4.03 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680555170
Side View
Table 65.0%Crown 48°Girdle: MediumPavilion 35.2°Culet: NoneDepth 68.7%

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: $872 USD|Low: $625 USD|High: $6,830 USD|Avg: $1,549 USD|-25.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
June 15, 2026
Retailer 8$728 USD
Retailer 7$785 USD
Retailer 1$872 USD
Retailer 4$1,007 USD
Retailer 5$1,126 USD
Retailer 3$1,267 USD
Retailer 2$1,691 USD
Retailer 6$6,830 USD

72 data points across 8 retailers

1 retailer

B
Diamond Quarter
4.03SI1DLG7000EEN · Oct 29
$1,995 USD
£1,570 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
4.03ct Radiant
$1,995 USD