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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6565467161

Certificate GIA 6565467161

Diamond specifications and retailer prices

From $2,644 AUD
As of November 6, 2026
Save $4,707 AUD (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,351 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565467161. Listed at 20 retailers as of November 5, 2026, with prices from $2,644 to $7,351, a $4,707 spread on the same certified stone. NZ Jewellers lists it at $7,351. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6565467161
Dimensions6.78 × 6.83 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cloud, Cavity, Needle, Natural
Top View
6.78 mm6.83 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565467161
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: $7,351 AUD|Low: $2,644 AUD|High: $7,351 AUD|Avg: $3,994 AUD
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
November 6, 2026
Retailer 14$2,644 AUD
Retailer 8$2,745 AUD
Retailer 12$3,081 AUD
Retailer 6$3,216 AUD
Retailer 7$3,304 AUD
Retailer 9$3,365 AUD
Retailer 4$3,516 AUD
Retailer 15$3,516 AUD
Retailer 3$3,679 AUD
Retailer 10$3,698 AUD
Retailer 5$4,058 AUD
Retailer 11$4,292 AUD
Retailer 2$4,382 AUD
Retailer 13$6,159 AUD
NZ Jewellers$7,351 AUD

24 data points across 15 retailers

20 retailers$2,644 AUD to $7,351 AUD

A
Cheapest Retailer
-
$2,644 AUD
A
Retailer 2
-
$2,745 AUD
View
A
Retailer 3
-
$3,081 AUD
View
B+
Retailer 4
-
$3,216 AUD
View
B+
Retailer 5
-
$3,299 AUD
View
B+
Retailer 6
-
$3,304 AUD
View
B+
Retailer 7
-
$3,314 AUD
View
B+
Retailer 8
-
$3,365 AUD
View
B+
Retailer 9
-
$3,516 AUD
View
Retailer 10
-
$3,516 AUD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$3,624 AUD
View
B+
Retailer 12
-
$3,673 AUD
View
B+
Retailer 13
-
$3,679 AUD
View
B+
Retailer 14
-
$3,698 AUD
View
B+
Retailer 15
-
$3,720 AUD
View
B
Retailer 16
-
$4,058 AUD
View
B
Retailer 17
-
$4,292 AUD
View
B+
Retailer 18
-
$4,382 AUD
View
B
Retailer 19
-
$6,159 AUD
View
Most Expensive
B
NZ Jewellers
58ab7d78-f88a-4570-bb92-c69ea9dece91 · Nov 5
$7,351 AUD
$5,051 USD
View
19 more retailers have this diamond
Prices start from $2,644 AUDSave up to $4,707 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
1.20ct Round
$2,644 AUD