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Oval|Natural|GIA

1.00ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 1518374826

Certificate GIA 1518374826

Diamond specifications and retailer prices

From $3,327 AUD
As of November 4, 2026
Save $4,138 AUD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,799 AUD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1518374826. Listed at 23 retailers as of November 4, 2026, with a 124% 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

1.00
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1518374826
Dimensions8.55 × 5.29 × 3.22 mm
L/W Ratio1.62
Top View
8.55 mm5.29 mm1.00 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1518374826
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.0%

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: Nov 4
Current: $7,799 AUD|Low: $3,430 AUD|High: $7,799 AUD|Avg: $5,093 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$3,743 AUD
Retailer 10$3,836 AUD
Retailer 5$4,055 AUD
Retailer 13$4,055 AUD
Retailer 2$4,343 AUD
Retailer 7$4,599 AUD
Retailer 4$4,662 AUD
Retailer 3$4,679 AUD
Retailer 12$4,781 AUD
Retailer 6$5,212 AUD
Retailer 8$5,464 AUD
Retailer 9$7,465 AUD
NZ Jewellers$7,799 AUD

39 data points across 13 retailers

23 retailers$3,327 AUD to $7,465 AUD

B+
Cheapest Retailer
-
$3,327 AUD
B+
Retailer 2
-
$3,633 AUD
View
B+
Retailer 3
-
$3,743 AUD
View
Final sale: no returns
B+
Retailer 4
-
$3,836 AUD
View
B
Retailer 5
-
$3,981 AUD
View
Retailer 6
-
$4,055 AUD
View
Price last confirmed 21 days ago
Retailer 7
-
$4,055 AUD
View
Price last confirmed 17 days ago
Retailer 8
-
$4,212 AUD
View
Price last confirmed 21 days ago
B
Retailer 9
-
$4,343 AUD
View
B+
Retailer 10
-
$4,599 AUD
View
B
Retailer 11
-
$4,662 AUD
View
Retailer 12
-
$4,679 AUD
View
Price last confirmed 66 days ago
Retailer 13
-
$4,679 AUD
View
Price last confirmed 16 days ago
Retailer 14
-
$4,781 AUD
View
Price last confirmed 30 days ago
B
Retailer 15
-
$4,788 AUD
View
B
Retailer 16
-
$4,788 AUD
View
B
Retailer 17
-
$4,948 AUD
View
B
Retailer 18
-
$5,033 AUD
View
B
Retailer 19
-
$5,212 AUD
View
B
Retailer 20
-
$5,464 AUD
View
B
Retailer 21
-
$7,465 AUD
View
Retailer 22
-
$7,799 AUD
View
Price last confirmed 56 days ago
Most Expensive
NZ Jewellers
608f5103-5a3a-4de9-85a3-1b77a034b051 · Oct 20
$7,799 AUD
$5,359 USD
View
Price last confirmed 17 days ago
22 more retailers have this diamond
Prices start from $3,327 AUDSave up to $4,138 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+
1.00ct Oval
$3,327 AUD