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Round|Natural|GIA

0.80ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2526637957

Certificate GIA 2526637957

Diamond specifications and retailer prices

From $826 AUD
As of November 5, 2026
Save $1,167 AUD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,618 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct 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 2526637957. Listed at 20 retailers as of November 2, 2026, with a 141% 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

0.80
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2526637957
Dimensions5.92 × 5.86 × 3.73 mm
L/W Ratio1.01
Top View
5.92 mm5.86 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2526637957
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.3%

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: Nov 5
Current: $1,364 AUD|Low: $826 AUD|High: $2,138 AUD|Avg: $1,353 AUD|-7.4%
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
November 6, 2026
Retailer 12$826 AUD
Retailer 7$840 AUD
Retailer 14$903 AUD
Retailer 5$1,106 AUD
Retailer 4$1,140 AUD
Retailer 8$1,166 AUD
Retailer 2$1,277 AUD
Retailer 9$1,287 AUD
Retailer 11$1,314 AUD
Retailer 3$1,336 AUD
Retailer 1$1,364 AUD
Retailer 10$1,453 AUD
Retailer 6$1,538 AUD
Retailer 13$1,610 AUD
Retailer 15$1,993 AUD

23 data points across 15 retailers

20 retailers$826 AUD to $1,993 AUD

A
Cheapest Retailer
-
$826 AUD
A
Retailer 2
-
$840 AUD
View
A
Retailer 3
-
$903 AUD
View
A
Retailer 4
-
$1,106 AUD
View
A
Retailer 5
-
$1,140 AUD
View
Retailer 6
-
$1,150 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$1,154 AUD
View
Price last confirmed 26 days ago
A
Retailer 8
-
$1,166 AUD
View
A
Retailer 9
-
$1,277 AUD
View
A
Retailer 10
-
$1,287 AUD
View
A
Retailer 11
-
$1,314 AUD
View
Retailer 12
-
$1,331 AUD
View
Price last confirmed 44 days ago
B+
Retailer 13
-
$1,336 AUD
View
A
Retailer 14
-
$1,364 AUD
View
A
Retailer 15
-
$1,453 AUD
View
B+
Retailer 16
-
$1,538 AUD
View
B+
Retailer 17
-
$1,610 AUD
View
B+
Retailer 18
-
$1,993 AUD
View
Retailer 19
-
$3,618 AUD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
d03117cc-e2ed-49ec-af9b-e2cd552ef7bb · Oct 3
$3,618 AUD
$2,533 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from $826 AUDSave up to $1,167 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
0.80ct Round
$826 AUD