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Round|Lab Grown|IGI

1.63ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG665402740

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665402740

Diamond specifications and retailer prices

From $330 AUD
$231 USD
As of November 1, 2026
Save $2,496 AUD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,825 AUD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG665402740 or 665402740. Listed at 13 retailers as of November 1, 2026, with prices from $330 to $2,825, a $2,496 spread on the same certified stone. Do Amore Diamonds lists it at $2,825. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665402740
Dimensions7.63 × 7.57 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type II
Top View
7.63 mm7.57 mm1.63 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665402740
Side View
Table 55.0%Crown 33°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: Nov 1
Current: $2,825 AUD|Low: $268 AUD|High: $2,825 AUD|Avg: $1,061 AUD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 7$330 AUD
Retailer 9$538 AUD
Retailer 6$631 AUD
Retailer 8$736 AUD
Retailer 2$742 AUD
Retailer 4$1,042 AUD
Retailer 5$1,176 AUD
Retailer 3$1,613 AUD
Do Amore Diamonds$2,825 AUD

40 data points across 9 retailers

13 retailers$330 AUD to $2,825 AUD

A
Cheapest Retailer
-
$330 AUD
$231 USD
Final sale: no returns
Retailer 2
-
$364 AUD
$255 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
$364 AUD
$255 USD
View
A
Retailer 4
-
$538 AUD
$377 USD
View
B+
Retailer 5
-
$631 AUD
$442 USD
View
A
Retailer 6
-
$736 AUD
$516 USD
View
A
Retailer 7
-
$742 AUD
£409 GBP
View
Retailer 8
-
$1,042 AUD
$730 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$1,176 AUD
$824 USD
View
Retailer 10
-
$1,293 AUD
$906 USD
View
Price last confirmed 26 days ago
B
Retailer 11
-
$1,293 AUD
$906 USD
View
B
Retailer 12
-
$1,613 AUD
£890 GBP
View
Most Expensive
B
Do Amore Diamonds
27-037A0F266 · Nov 2
$2,825 AUD
$1,980 USD
View
12 more retailers have this diamond
Prices start from $330 AUDSave up to $2,496 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 Round
$330 AUD