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Round|Natural|GIA

0.90ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7528296951

Certificate GIA 7528296951

Diamond specifications and retailer prices

From $894 AUD
As of November 5, 2026
Save $1,861 AUD (68%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,090 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7528296951. Listed at 25 retailers as of November 5, 2026, with a 208% 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

0.90
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7528296951
Dimensions6.17 × 6.15 × 3.80 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Cert comments
Crystal, Feather
Top View
6.17 mm6.15 mm0.90 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7528296951
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 5
Current: $2,756 AUD|Low: $894 AUD|High: $2,911 AUD|Avg: $1,457 AUD|-5.2%
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 13$894 AUD
Retailer 8$914 AUD
Retailer 15$979 AUD
Retailer 16$1,177 AUD
Retailer 5$1,193 AUD
Retailer 3$1,204 AUD
Retailer 7$1,211 AUD
Retailer 9$1,260 AUD
Retailer 6$1,281 AUD
Retailer 4$1,349 AUD
Retailer 10$1,374 AUD
Retailer 12$1,396 AUD
Retailer 11$1,570 AUD
Retailer 14$1,698 AUD
Retailer 2$2,121 AUD
Retailer 1$2,756 AUD

19 data points across 16 retailers

25 retailers$894 AUD to $2,756 AUD

A
Cheapest Retailer
-
$894 AUD
A
Retailer 2
-
$914 AUD
View
A
Retailer 3
-
$979 AUD
View
A
Retailer 4
-
$1,177 AUD
View
A
Retailer 5
-
$1,193 AUD
View
A
Retailer 6
-
$1,204 AUD
View
Retailer 7
-
$1,211 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
$1,249 AUD
View
Price last confirmed 25 days ago
A
Retailer 9
-
$1,260 AUD
View
A
Retailer 10
-
$1,281 AUD
View
Retailer 11
-
$1,304 AUD
View
Price last confirmed 34 days ago
A
Retailer 12
-
$1,349 AUD
View
Retailer 13
-
$1,373 AUD
View
Price last confirmed 38 days ago
A
Retailer 14
-
$1,374 AUD
View
A
Retailer 15
-
$1,396 AUD
View
Retailer 16
-
$1,441 AUD
View
Price last confirmed 26 days ago
Retailer 17
-
$1,470 AUD
View
Price last confirmed 109 days ago
Retailer 18
-
$1,504 AUD
View
Price last confirmed 35 days ago
A
Retailer 19
-
$1,570 AUD
View
A
Retailer 20
-
$1,698 AUD
View
B+
Retailer 21
-
$1,790 AUD
View
B+
Retailer 22
-
$2,121 AUD
View
B
Retailer 23
-
$2,756 AUD
View
Retailer 24
-
$3,916 AUD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
10c355bf-e290-436c-ba36-dc7ee543beee · Oct 3
$4,090 AUD
$2,863 USD
View
Price last confirmed 34 days ago
24 more retailers have this diamond
Prices start from $894 AUDSave up to $1,861 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 Round
$894 AUD