Round|Natural|GIA

0.85ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 3485765063

Certificate GIA 3485765063

Diamond specifications and retailer prices

From $1,594 AUD
$1,120 USD
As of October 31, 2026
Save $3,056 AUD (66%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $4,651 AUD at NZ Jewellers · As of October 3, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3485765063. Listed at 26 retailers as of October 30, 2026, with a 192% 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3485765063
Dimensions6.07 × 6.02 × 3.77 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.07 mm6.02 mm0.85 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3485765063
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: Oct 31
Current: $2,649 AUD|Low: $1,461 AUD|High: $3,535 AUD|Avg: $2,249 AUD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$1,594 AUD
Retailer 4$1,727 AUD
Retailer 7$1,858 AUD
Retailer 3$2,148 AUD
Retailer 5$2,332 AUD
Retailer 1$2,649 AUD
Retailer 2$3,493 AUD

40 data points across 7 retailers

26 retailers$1,594 AUD to $4,651 AUD

A
Cheapest Retailer
-
$1,594 AUD
$1,120 USD
Final sale: no returns
A
Retailer 2
-
$1,654 AUD
$1,162 USD
View
A
Retailer 3
-
$1,696 AUD
$1,191 USD
View
A
Retailer 4
-
$1,727 AUD
$1,213 USD
View
Retailer 5
-
$1,727 AUD
$1,213 USD
View
Price last confirmed 45 days ago
Retailer 6
-
$1,727 AUD
$1,213 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$1,727 AUD
$1,213 USD
View
Price last confirmed 10 days ago
Retailer 8
-
$1,727 AUD
$1,213 USD
View
Price last confirmed 16 days ago
Retailer 9
-
$1,794 AUD
$1,260 USD
View
Price last confirmed 33 days ago
A
Retailer 10
-
$1,855 AUD
$1,303 USD
View
A
Retailer 11
-
$1,858 AUD
$1,305 USD
View
B+
Retailer 12
-
$1,993 AUD
$1,400 USD
View
B+
Retailer 13
-
$1,993 AUD
$1,400 USD
View
Retailer 14
-
$1,993 AUD
$1,400 USD
View
Price last confirmed 40 days ago
Retailer 15
-
$1,993 AUD
$1,400 USD
View
Price last confirmed 23 days ago
Retailer 16
-
$1,993 AUD
$1,400 USD
View
Price last confirmed 11 days ago
B+
Retailer 17
-
$1,993 AUD
$1,400 USD
View
B+
Retailer 18
-
$2,064 AUD
$1,450 USD
View
B+
Retailer 19
-
$2,148 AUD
£1,188 GBP
View
B+
Retailer 20
-
$2,332 AUD
£1,290 GBP
View
B+
Retailer 21
-
$2,649 AUD
€1,772 EUR
View
B
Retailer 22
-
$3,493 AUD
£1,932 GBP
View
B
Retailer 23
-
$4,651 AUD
$3,267 USD
View
Retailer 24
-
$4,651 AUD
$3,267 USD
View
Price last confirmed 42 days ago
Retailer 25
-
$4,651 AUD
$3,267 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
191a5c4c-5cda-4f82-b0c2-a0f7a7d44e12 · Oct 3
$4,651 AUD
$3,267 USD
View
Price last confirmed 29 days ago
25 more retailers have this diamond
Prices start from $1,594 AUDSave up to $3,056 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
0.85ct Round
$1,594 AUD