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Round|Natural|GIA

0.85ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2486808389

Certificate GIA 2486808389

Diamond specifications and retailer prices

From $1,654 AUD
As of November 6, 2026
Save $969 AUD (37%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,608 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.85ct natural round diamond

This 0.85ct 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 2486808389. Listed at 8 retailers as of November 4, 2026, with a 59% 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

0.85
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2486808389
Dimensions6.01 × 6.05 × 3.75 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.01 mm6.05 mm0.85 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2486808389
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,654 AUD|Low: $1,480 AUD|High: $2,743 AUD|Avg: $1,916 AUD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$1,480 AUD
Retailer 5$1,480 AUD
Retailer 1$1,654 AUD
Retailer 2$1,998 AUD
Retailer 6$2,133 AUD
Retailer 3$2,623 AUD

42 data points across 6 retailers

8 retailers$1,654 AUD to $2,623 AUD

Retailer 1
-
$1,480 AUD
Price last confirmed 29 days ago
Retailer 2
-
$1,480 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$1,536 AUD
View
Price last confirmed 38 days ago
B+
Retailer 4
-
$1,654 AUD
View
Retailer 5
-
$1,707 AUD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$1,998 AUD
View
B
Retailer 7
-
$2,623 AUD
View
Most Expensive
NZ Jewellers
06c6dc71-aff0-4e5f-9a6a-9f24e6f0e6ad · Sep 28
$3,608 AUD
$2,526 USD
View
Price last confirmed 39 days ago
7 more retailers have this diamond
Prices start from $1,654 AUDSave up to $969 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+
0.85ct Round
$1,654 AUD