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Round|Natural|GIA

0.80ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1565258810

Certificate GIA 1565258810

Diamond specifications and retailer prices

From $979 AUD
As of November 5, 2026
Save $3,151 AUD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,130 AUD at NZ Jewellers · As of November 5, 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 1565258810. Listed at 18 retailers as of November 5, 2026, with prices from $979 to $4,130, a $3,151 spread on the same certified stone. NZ Jewellers lists it at $4,130. 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
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1565258810
Dimensions5.92 × 5.90 × 3.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
5.92 mm5.90 mm0.80 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1565258810
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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 5
Current: $4,130 AUD|Low: $979 AUD|High: $4,241 AUD|Avg: $1,673 AUD|-2.6%
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 12$979 AUD
Retailer 6$987 AUD
Retailer 15$1,186 AUD
Retailer 13$1,247 AUD
Retailer 17$1,290 AUD
Retailer 9$1,317 AUD
Retailer 7$1,344 AUD
Retailer 4$1,367 AUD
Retailer 10$1,374 AUD
Retailer 3$1,520 AUD
Retailer 14$1,531 AUD
Retailer 11$1,577 AUD
Retailer 2$1,650 AUD
Retailer 5$1,718 AUD
Retailer 16$1,874 AUD
Retailer 8$2,410 AUD
NZ Jewellers$4,130 AUD

20 data points across 17 retailers

18 retailers$979 AUD to $4,130 AUD

A
Cheapest Retailer
-
$979 AUD
A
Retailer 2
-
$987 AUD
View
A
Retailer 3
-
$1,186 AUD
View
A
Retailer 4
-
$1,247 AUD
View
B+
Retailer 5
-
$1,290 AUD
View
A
Retailer 6
-
$1,317 AUD
View
A
Retailer 7
-
$1,327 AUD
View
A
Retailer 8
-
$1,344 AUD
View
A
Retailer 9
-
$1,367 AUD
View
A
Retailer 10
-
$1,374 AUD
View
A
Retailer 11
-
$1,520 AUD
View
A
Retailer 12
-
$1,531 AUD
View
B+
Retailer 13
-
$1,577 AUD
View
B+
Retailer 14
-
$1,650 AUD
View
B+
Retailer 15
-
$1,718 AUD
View
B+
Retailer 16
-
$1,874 AUD
View
B
Retailer 17
-
$2,410 AUD
View
Most Expensive
B
NZ Jewellers
214b6b38-044e-4aa1-9cbc-ba5cf0d2e0ac · Nov 5
$4,130 AUD
$2,891 USD
View
17 more retailers have this diamond
Prices start from $979 AUDSave up to $3,151 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
$979 AUD