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Oval|Natural|GIA

1.00ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1525251765

Certificate GIA 1525251765

Diamond specifications and retailer prices

From $3,688 AUD
As of November 6, 2026
Save $4,317 AUD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $8,361 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1525251765. Listed at 23 retailers as of November 4, 2026, with a 117% 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525251765
Dimensions8.63 × 5.35 × 3.37 mm
L/W Ratio1.61
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Indented Natural
Top View
8.63 mm5.35 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1525251765
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.9%

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 6
Current: $3,839 AUD|Low: $3,688 AUD|High: $8,123 AUD|Avg: $5,320 AUD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 2$3,688 AUD
Retailer 1$3,839 AUD
Retailer 14$4,350 AUD
Retailer 16$4,366 AUD
Retailer 6$4,395 AUD
Retailer 4$4,468 AUD
Retailer 9$4,656 AUD
Retailer 7$4,800 AUD
Retailer 12$4,966 AUD
Retailer 5$4,985 AUD
Retailer 10$5,136 AUD
Retailer 8$5,538 AUD
Retailer 11$5,586 AUD
Retailer 13$5,858 AUD
Retailer 3$7,855 AUD
Retailer 15$8,005 AUD

26 data points across 16 retailers

23 retailers$3,688 AUD to $8,005 AUD

A
Cheapest Retailer
-
$3,688 AUD
A
Retailer 2
-
$3,839 AUD
View
B+
Retailer 3
-
$4,350 AUD
View
B+
Retailer 4
-
$4,366 AUD
View
B+
Retailer 5
-
$4,395 AUD
View
B+
Retailer 6
-
$4,429 AUD
View
Final sale: no returns
Retailer 7
-
$4,468 AUD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
$4,579 AUD
View
B+
Retailer 9
-
$4,585 AUD
View
B+
Retailer 10
-
$4,656 AUD
View
Retailer 11
-
$4,800 AUD
View
Price last confirmed 21 days ago
Retailer 12
-
$4,800 AUD
View
Price last confirmed 19 days ago
B+
Retailer 13
-
$4,966 AUD
View
Retailer 14
-
$4,985 AUD
View
Price last confirmed 21 days ago
B+
Retailer 15
-
$5,008 AUD
View
B+
Retailer 16
-
$5,136 AUD
View
Retailer 17
-
$5,197 AUD
View
Price last confirmed 33 days ago
Retailer 18
-
$5,538 AUD
View
Price last confirmed 19 days ago
B+
Retailer 19
-
$5,586 AUD
View
B+
Retailer 20
-
$5,858 AUD
View
Retailer 21
-
$7,855 AUD
View
Price last confirmed 9 days ago
B
Retailer 22
-
$8,005 AUD
View
Most Expensive
NZ Jewellers
22c08c08-1618-484a-942f-3ee196d09e0c · Oct 17
$8,361 AUD
$5,745 USD
View
Price last confirmed 20 days ago
22 more retailers have this diamond
Prices start from $3,688 AUDSave up to $4,317 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
1.00ct Oval
$3,688 AUD