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Round|Lab Grown|GIA

1.63ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • GIA 6442525442

Certificate GIA 6442525442

Diamond specifications and retailer prices

From $519 AUD
$364 USD
As of November 1, 2026
Save $1,767 AUD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,783 AUD at MOH London · As of October 26, 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6442525442. Listed at 8 retailers as of October 31, 2026, with a 340% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.63
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabGIA
CertificateGIA 6442525442
Dimensions7.58 × 7.55 × 4.60 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Culet sizeNone
Top View
7.58 mm7.55 mm1.63 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6442525442
Side View
Table 57.0%Crown 33.5°Girdle: MTS-MTSPavilion 40.4°Culet: NoneDepth 60.8%

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: Nov 1
Current: $2,783 AUD|Low: $519 AUD|High: $2,847 AUD|Avg: $1,609 AUD|-2.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 7$519 AUD
Retailer 6$602 AUD
Retailer 5$1,030 AUD
Retailer 2$1,035 AUD
Retailer 9$1,049 AUD
Retailer 3$1,889 AUD
Retailer 8$2,155 AUD
Retailer 4$2,286 AUD
MOH London$2,783 AUD

19 data points across 9 retailers

8 retailers$519 AUD to $2,286 AUD

A
Cheapest Retailer
-
$519 AUD
$364 USD
A
Retailer 2
-
$602 AUD
$422 USD
View
B+
Retailer 3
-
$1,030 AUD
$722 USD
View
B+
Retailer 4
-
$1,035 AUD
$725 USD
View
B
Retailer 5
-
$1,889 AUD
$1,324 USD
View
B
Retailer 6
-
$2,155 AUD
$1,510 USD
View
B
Retailer 7
-
$2,286 AUD
$1,602 USD
View
Most Expensive
MOH London
6442525442 · Oct 26
$2,783 AUD
£1,536 GBP
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from $519 AUDSave up to $1,767 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
$519 AUD