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Oval|Natural|GIA

0.63ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 7451087639

Certificate GIA 7451087639

Diamond specifications and retailer prices

From $1,233 AUD
$864 USD
As of October 30, 2026
Save $1,320 AUD (52%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,348 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.63ct natural oval diamond

This 0.63ct natural oval sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7451087639. Listed at 18 retailers as of October 29, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.63
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7451087639
Dimensions6.68 × 4.88 × 3.07 mm
L/W Ratio1.37
Top View
6.68 mm4.88 mm0.63 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7451087639
Side View
Table 61.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,071 AUD|Low: $1,062 AUD|High: $2,570 AUD|Avg: $1,701 AUD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7$1,159 AUD
Retailer 2$1,233 AUD
Retailer 9$1,256 AUD
Retailer 6$1,484 AUD
Retailer 3$1,620 AUD
Retailer 10$1,843 AUD
Retailer 5$1,946 AUD
Retailer 1$2,071 AUD
Retailer 8$2,085 AUD
Retailer 4$2,553 AUD

40 data points across 10 retailers

18 retailers$1,233 AUD to $2,553 AUD

B+
Cheapest Retailer
-
$1,233 AUD
$864 USD
Retailer 2
-
$1,256 AUD
$880 USD
View
Price last confirmed 41 days ago
Retailer 3
-
$1,256 AUD
$880 USD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,271 AUD
$891 USD
View
Retailer 5
-
$1,304 AUD
$914 USD
View
Price last confirmed 33 days ago
Retailer 6
-
$1,450 AUD
$1,016 USD
View
Price last confirmed 48 days ago
Retailer 7
-
$1,450 AUD
$1,016 USD
View
Price last confirmed 33 days ago
Retailer 8
-
$1,450 AUD
$1,016 USD
View
Price last confirmed 41 days ago
B+
Retailer 9
-
$1,484 AUD
$1,040 USD
View
B
Retailer 10
-
$1,620 AUD
£894 GBP
View
B
Retailer 11
-
$1,843 AUD
$1,292 USD
View
B
Retailer 12
-
$1,946 AUD
€1,299 EUR
View
B
Retailer 13
-
$2,071 AUD
ZAR 23,444 ZAR
View
Retailer 14
-
$2,085 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$2,553 AUD
£1,409 GBP
View
Retailer 16
-
$4,348 AUD
$3,047 USD
View
Price under review
Retailer 17
-
$4,348 AUD
$3,047 USD
View
Price under review
Most Expensive
NZ Jewellers
ffb2c7c6-caed-4016-a105-fef4c45160d2 · Sep 30
$4,348 AUD
$3,047 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,233 AUDSave up to $1,320 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.

B+
0.63ct Oval
$1,233 AUD