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Oval|Natural|GIA

0.90ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 1515657312

Certificate GIA 1515657312

Diamond specifications and retailer prices

From $913 AUD
As of November 6, 2026
Save $2,511 AUD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,423 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.9ct natural oval diamond

This 0.9ct natural oval sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1515657312. Listed at 16 retailers as of November 5, 2026, with prices from $913 to $3,423, a $2,511 spread on the same certified stone. NZ Jewellers lists it at $3,423. 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

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.16°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 1515657312
Dimensions7.66 × 5.25 × 3.37 mm
L/W Ratio1.46
Culet sizeNone
Key to symbols
Crystal
Top View
7.66 mm5.25 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1515657312
Side View
Table 61.0%Crown 40.16°Girdle: STK-VTKPavilion 40°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,423 AUD|Low: $924 AUD|High: $3,423 AUD|Avg: $1,526 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 9$930 AUD
Retailer 12$1,062 AUD
Retailer 5$1,092 AUD
Retailer 13$1,092 AUD
Retailer 6$1,122 AUD
Retailer 3$1,134 AUD
Retailer 8$1,180 AUD
Retailer 4$1,259 AUD
Retailer 2$1,329 AUD
Retailer 7$1,540 AUD
Retailer 10$1,598 AUD
Retailer 11$1,995 AUD
NZ Jewellers$3,423 AUD

43 data points across 13 retailers

16 retailers$913 AUD to $3,423 AUD

A
Cheapest Retailer
-
$913 AUD
A
Retailer 2
-
$930 AUD
View
A
Retailer 3
-
$1,062 AUD
View
A
Retailer 4
-
$1,092 AUD
View
Retailer 5
-
$1,092 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,109 AUD
View
A
Retailer 7
-
$1,122 AUD
View
A
Retailer 8
-
$1,134 AUD
View
A
Retailer 9
-
$1,180 AUD
View
A
Retailer 10
-
$1,259 AUD
View
A
Retailer 11
-
$1,329 AUD
View
B+
Retailer 12
-
$1,514 AUD
View
B+
Retailer 13
-
$1,540 AUD
View
B+
Retailer 14
-
$1,598 AUD
View
B+
Retailer 15
-
$1,995 AUD
View
Most Expensive
B
NZ Jewellers
655b4daf-6264-4c7e-9924-30d07812fd9f · Nov 5
$3,423 AUD
$2,352 USD
View
15 more retailers have this diamond
Prices start from $913 AUDSave up to $2,511 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
0.90ct Oval
$913 AUD