Radiant|Lab Grown|IGI

10.03ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG589378020

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

Certificate IGI LG589378020

Diamond specifications and retailer prices

From $1,935 CAD
$1,385 USD
As of October 29, 2026
Save $6,642 CAD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,577 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.03ct lab-grown radiant diamond

This 10.03ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG589378020 or 589378020. Listed at 8 retailers as of October 29, 2026, with prices from $1,935 to $8,577, a $6,642 spread on the same certified stone. Brilliant Earth lists it at $8,577. 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

10.03
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589378020
Dimensions15.13 × 10.62 × 7.26 mm
L/W Ratio1.42
Culet sizePointed
Top View
15.13 mm10.62 mm10.03 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589378020
Side View
Table 64.0%Crown 45.4°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $8,577 CAD|Low: $1,689 CAD|High: $8,842 CAD|Avg: $4,315 CAD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 6$1,689 CAD
Retailer 2$1,935 CAD
Retailer 7$2,549 CAD
Retailer 5$2,693 CAD
Retailer 3$2,933 CAD
Retailer 4$3,530 CAD
Retailer 8$8,485 CAD
Brilliant Earth$8,577 CAD

20 data points across 8 retailers

8 retailers$1,935 CAD to $8,577 CAD

Retailer 1
-
$1,689 CAD
$1,209 USD
Price last confirmed 20 days ago
A
Retailer 2
-
$1,935 CAD
$1,385 USD
View
B+
Retailer 3
-
$2,549 CAD
$1,825 USD
View
B+
Retailer 4
-
$2,693 CAD
$1,928 USD
View
Retailer 5
-
$2,933 CAD
€2,000 EUR
View
Price last confirmed 8 days ago
B
Retailer 6
-
$3,530 CAD
$2,527 USD
View
B
Retailer 7
-
$8,485 CAD
$6,074 USD
View
Most Expensive
B
Brilliant Earth
7682429A · Oct 29
$8,577 CAD
$6,140 USD
View
7 more retailers have this diamond
Prices start from $1,935 CADSave up to $6,642 CAD

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.

A
10.03ct Radiant
$1,935 CAD