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Round|Lab Grown|IGI

1.63ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG436074625

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436074625

Diamond specifications and retailer prices

From $1,137 USD
As of October 29, 2026
Save $3,105 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,242 USD at MOH London · As of October 27, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074625 or 436074625. Listed at 10 retailers as of October 27, 2026, with prices from $1,137 to $4,242, a $3,105 spread on the same certified stone. MOH London lists it at $4,242. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074625
Dimensions7.72 × 7.68 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.72 mm7.68 mm1.63 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074625
Side View
Table 58.5%Crown 32.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 59.1%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $4,242 USD|Low: $1,160 USD|High: $4,293 USD|Avg: $2,157 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 25, 2026
Retailer 2$1,160 USD
Retailer 4$1,273 USD
Retailer 7$1,417 USD
Retailer 6$1,885 USD
Retailer 3$2,095 USD
Retailer 5$2,598 USD
Retailer 8$2,948 USD
MOH London$4,242 USD

10 data points across 8 retailers

10 retailers$1,137 USD to $4,242 USD

A
Cheapest Retailer
-
$1,137 USD
A
Retailer 2
-
$1,160 USD
View
A
Retailer 3
-
$1,237 USD
View
A
Retailer 4
-
$1,273 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,318 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,318 USD
View
B
Retailer 7
-
$2,095 USD
View
B
Retailer 8
-
$2,471 USD
View
B
Retailer 9
-
$2,598 USD
View
Most Expensive
B
MOH London
LG436074625 · Oct 27
$4,242 USD
£3,340 GBP
View
9 more retailers have this diamond
Prices start from $1,137 USDSave up to $3,105 USD

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
1.63ct Round
$1,137 USD