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Round|Lab Grown|IGI

1.03ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG451056228

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056228

Diamond specifications and retailer prices

From $838 CAD
$600 USD
As of October 30, 2026
Save $5,169 CAD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,007 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056228 or 451056228. Listed at 12 retailers as of October 29, 2026, with prices from $838 to $6,007, a $5,169 spread on the same certified stone. MOH London lists it at $6,007. 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

1.03
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056228
Dimensions6.44 × 6.41 × 4.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.44 mm6.41 mm1.03 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056228
Side View
Table 55.5%Crown 34.1°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.4%

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 30
Current: $6,007 CAD|Low: $838 CAD|High: $6,055 CAD|Avg: $2,824 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 6$838 CAD
Retailer 7$1,604 CAD
Retailer 11$1,795 CAD
Retailer 8$1,859 CAD
Retailer 10$1,859 CAD
Retailer 5$2,042 CAD
Retailer 12$2,102 CAD
Retailer 13$2,622 CAD
Retailer 9$2,954 CAD
Retailer 2$3,178 CAD
Retailer 3$3,664 CAD
Retailer 4$5,324 CAD
MOH London$6,007 CAD

25 data points across 13 retailers

12 retailers$838 CAD to $6,007 CAD

A
Cheapest Retailer
-
$838 CAD
$600 USD
B+
Retailer 2
-
$1,604 CAD
$1,148 USD
View
B+
Retailer 3
-
$1,743 CAD
$1,248 USD
View
B+
Retailer 4
-
$1,795 CAD
$1,285 USD
View
Final sale: no returns
Retailer 5
-
$1,859 CAD
$1,331 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,859 CAD
$1,331 USD
View
B
Retailer 7
-
$2,102 CAD
$1,505 USD
View
B
Retailer 8
-
$2,954 CAD
$2,115 USD
View
B
Retailer 9
-
$3,178 CAD
€2,167 EUR
View
B
Retailer 10
-
$3,485 CAD
$2,495 USD
View
B
Retailer 11
-
$3,664 CAD
$2,623 USD
View
Most Expensive
B
MOH London
LG451056228 · Oct 29
$6,007 CAD
£3,386 GBP
View
11 more retailers have this diamond
Prices start from $838 CADSave up to $5,169 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
1.03ct Round
$838 CAD