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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 $647 NZD
$364 USD
As of November 1, 2026
Save $2,200 NZD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,467 NZD 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 November 1, 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: $3,467 NZD|Low: $647 NZD|High: $3,546 NZD|Avg: $2,005 NZD|-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$647 NZD
Retailer 6$750 NZD
Retailer 5$1,283 NZD
Retailer 2$1,289 NZD
Retailer 9$1,306 NZD
Retailer 3$2,353 NZD
Retailer 8$2,684 NZD
Retailer 4$2,847 NZD
MOH London$3,467 NZD

19 data points across 9 retailers

8 retailers$647 NZD to $2,847 NZD

A
Cheapest Retailer
-
$647 NZD
$364 USD
A
Retailer 2
-
$750 NZD
$422 USD
View
B+
Retailer 3
-
$1,283 NZD
$722 USD
View
B+
Retailer 4
-
$1,289 NZD
$725 USD
View
B
Retailer 5
-
$2,353 NZD
$1,324 USD
View
B
Retailer 6
-
$2,684 NZD
$1,510 USD
View
B
Retailer 7
-
$2,847 NZD
$1,602 USD
View
Most Expensive
MOH London
6442525442 · Oct 26
$3,467 NZD
£1,536 GBP
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from $647 NZDSave up to $2,200 NZD

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
$647 NZD