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Princess|Lab Grown|IGI

1.63ct J SI1 Princess Lab Grown Diamond

ID • J/SI1 • IGI LG436073778

Shape and cutting style on the report: Princess cut

Certificate IGI LG436073778

Diamond specifications and retailer prices

From $1,310 AUD
$920 USD
As of October 30, 2026
Save $5,139 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,449 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.63ct lab-grown princess diamond

This 1.63ct lab-grown princess sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073778 or 436073778. Listed at 11 retailers as of October 29, 2026, with prices from $1,310 to $6,449, a $5,139 spread on the same certified stone. MOH London lists it at $6,449. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073778
Dimensions6.55 × 6.45 × 4.42 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
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Top View
6.55 mm6.45 mm1.63 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436073778
Side View
Table 72.5%Crown 43.5°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 68.5%

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: $6,449 AUD|Low: $1,310 AUD|High: $6,491 AUD|Avg: $3,188 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,310 AUD
Retailer 3$1,721 AUD
Retailer 5$1,928 AUD
Retailer 9$1,969 AUD
Retailer 6$2,242 AUD
Retailer 8$2,829 AUD
Retailer 4$3,166 AUD
Retailer 7$3,824 AUD
Retailer 10$5,717 AUD
MOH London$6,449 AUD

13 data points across 10 retailers

11 retailers$1,310 AUD to $6,449 AUD

A
Cheapest Retailer
-
$1,310 AUD
$920 USD
B+
Retailer 2
-
$1,721 AUD
$1,209 USD
View
A
Retailer 3
-
$1,872 AUD
$1,315 USD
View
B+
Retailer 4
-
$1,928 AUD
$1,354 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,996 AUD
$1,402 USD
View
Retailer 6
-
$1,996 AUD
$1,402 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$2,242 AUD
$1,575 USD
View
B
Retailer 8
-
$3,166 AUD
$2,224 USD
View
B
Retailer 9
-
$3,741 AUD
$2,628 USD
View
B
Retailer 10
-
$3,824 AUD
$2,686 USD
View
Most Expensive
B
MOH London
LG436073778 · Oct 29
$6,449 AUD
£3,567 GBP
View
10 more retailers have this diamond
Prices start from $1,310 AUDSave up to $5,139 AUD

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 Princess
$1,310 AUD