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Round|Natural|GIA

0.83ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2507386502

Certificate GIA 2507386502

Diamond specifications and retailer prices

From $1,458 AUD
As of November 6, 2026
Save $793 AUD (35%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,994 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 0.83ct natural round diamond

This 0.83ct 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 2507386502. Listed at 9 retailers as of November 2, 2026, with a 54% 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

0.83
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2507386502
Dimensions6.00 × 5.97 × 3.74 mm
L/W Ratio1.01
Top View
6.00 mm5.97 mm0.83 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2507386502
Side View
Table 59.0%Crown 33.5°GirdlePavilion 41.8°Culet: NoneDepth 62.5%

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 6
Current: $1,458 AUD|Low: $1,403 AUD|High: $2,360 AUD|Avg: $1,771 AUD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 1$1,458 AUD
Retailer 2$1,550 AUD
Retailer 3$1,727 AUD
Retailer 4$2,251 AUD

42 data points across 4 retailers

9 retailers$1,458 AUD to $2,251 AUD

Retailer 1
-
$1,273 AUD
Price last confirmed 29 days ago
Retailer 2
-
$1,273 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$1,323 AUD
View
Price last confirmed 38 days ago
A
Retailer 4
-
$1,458 AUD
View
Retailer 5
-
$1,470 AUD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$1,550 AUD
View
B+
Retailer 7
-
$1,727 AUD
View
B+
Retailer 8
-
$2,251 AUD
View
Most Expensive
NZ Jewellers
efc90d8d-2182-4890-9b4e-a869dbd9643e · Sep 28
$3,994 AUD
$2,796 USD
View
Price last confirmed 39 days ago
8 more retailers have this diamond
Prices start from $1,458 AUDSave up to $793 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
0.83ct Round
$1,458 AUD