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Round|Lab Grown|IGI

1.63ct K SI2 Round Lab Grown Diamond

EX • K/SI2 • IGI LG451057236

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057236

Diamond specifications and retailer prices

From $2,719 CAD
As of November 5, 2026
Save $2,461 CAD (48%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,985 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.63ct lab-grown round diamond

This 1.63ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451057236 or 451057236. Listed at 8 retailers as of November 5, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.63
Carat
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057236
Dimensions7.62 × 7.66 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.62 mm7.66 mm1.63 ctK / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057236
Side View
Table 58.5%Crown 31.8°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,985 CAD|Low: $2,610 CAD|High: $9,131 CAD|Avg: $4,833 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$2,719 CAD
Retailer 6$2,959 CAD
Retailer 4$3,155 CAD
Retailer 8$4,032 CAD
Retailer 7$4,336 CAD
Retailer 5$4,940 CAD
Retailer 2$5,180 CAD
Retailer 9$7,060 CAD
MOH London$8,985 CAD

15 data points across 9 retailers

8 retailers$2,719 CAD to $5,180 CAD

B+
Cheapest Retailer
-
$2,719 CAD
B
Retailer 2
-
$2,959 CAD
View
B
Retailer 3
-
$3,155 CAD
View
Retailer 4
-
$3,155 CAD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$4,336 CAD
View
B
Retailer 6
-
$4,940 CAD
View
B
Retailer 7
-
$5,180 CAD
View
Most Expensive
MOH London
LG451057236 · Nov 5
$8,985 CAD
£5,066 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $2,719 CADSave up to $2,461 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.

B+
1.63ct Round
$2,719 CAD