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Round|Natural|GIA

0.91ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2546638534

Certificate GIA 2546638534

Diamond specifications and retailer prices

From $2,150 AUD
As of November 1, 2026
Save $2,386 AUD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,331 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.91ct natural round diamond

This 0.91ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546638534. Listed at 12 retailers as of November 1, 2026, with a 111% 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

0.91
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2546638534
Dimensions6.17 × 6.21 × 3.83 mm
L/W Ratio1.01
Top View
6.17 mm6.21 mm0.91 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546638534
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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: Nov 1
Current: $6,331 AUD|Low: $1,481 AUD|High: $6,331 AUD|Avg: $2,766 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
Retailer 14
November 6, 2026
Retailer 5$1,510 AUD
Retailer 6$1,843 AUD
Retailer 9$2,150 AUD
Retailer 14$2,180 AUD
Retailer 11$2,268 AUD
Retailer 10$2,351 AUD
Retailer 13$2,351 AUD
Retailer 3$2,387 AUD
Retailer 12$2,460 AUD
Retailer 4$2,713 AUD
Retailer 2$2,864 AUD
Retailer 7$3,214 AUD
Retailer 8$4,535 AUD
NZ Jewellers$6,331 AUD

17 data points across 14 retailers

12 retailers$2,150 AUD to $4,535 AUD

B+
Cheapest Retailer
-
$2,150 AUD
B+
Retailer 2
-
$2,180 AUD
View
B
Retailer 3
-
$2,268 AUD
View
Retailer 4
-
$2,351 AUD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$2,351 AUD
View
B+
Retailer 6
-
$2,387 AUD
View
B+
Retailer 7
-
$2,460 AUD
View
B
Retailer 8
-
$2,713 AUD
View
B
Retailer 9
-
$2,864 AUD
View
B
Retailer 10
-
$3,214 AUD
View
B
Retailer 11
-
$4,535 AUD
View
Most Expensive
NZ Jewellers
731719ee-9728-4f51-b313-547444b4d966 · Nov 5
$6,331 AUD
$4,432 USD
View
Price under review
11 more retailers have this diamond
Prices start from $2,150 AUDSave up to $2,386 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+
0.91ct Round
$2,150 AUD