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Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2566547560

Certificate GIA 2566547560

Diamond specifications and retailer prices

From $3,491 AUD
As of November 6, 2026
Save $4,655 AUD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,147 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566547560. Listed at 18 retailers as of November 5, 2026, with prices from $3,491 to $8,147, a $4,655 spread on the same certified stone. NZ Jewellers lists it at $8,147. 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2566547560
Dimensions6.85 × 6.89 × 4.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.85 mm6.89 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566547560
Side View
Table 60.0%Crown 31.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.6%

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: $8,147 AUD|Low: $3,491 AUD|High: $9,217 AUD|Avg: $5,018 AUD|-11.6%
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
Retailer 18
November 6, 2026
Retailer 8$3,491 AUD
Retailer 2$3,591 AUD
Retailer 5$4,028 AUD
Retailer 6$4,151 AUD
Retailer 16$4,207 AUD
Retailer 4$4,317 AUD
Retailer 18$4,330 AUD
Retailer 11$4,474 AUD
Retailer 3$4,677 AUD
Retailer 10$4,733 AUD
Retailer 12$4,780 AUD
Retailer 17$4,857 AUD
Retailer 9$4,910 AUD
Retailer 13$5,283 AUD
Retailer 7$5,395 AUD
Retailer 14$5,405 AUD
Retailer 15$7,798 AUD
NZ Jewellers$8,147 AUD

19 data points across 18 retailers

18 retailers$3,491 AUD to $8,147 AUD

A
Cheapest Retailer
-
$3,491 AUD
A
Retailer 2
-
$3,591 AUD
View
A
Retailer 3
-
$4,028 AUD
View
A
Retailer 4
-
$4,151 AUD
View
A
Retailer 5
-
$4,207 AUD
View
A
Retailer 6
-
$4,317 AUD
View
Final sale: no returns
A
Retailer 7
-
$4,330 AUD
View
A
Retailer 8
-
$4,474 AUD
View
A
Retailer 9
-
$4,677 AUD
View
Retailer 10
-
$4,733 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$4,780 AUD
View
A
Retailer 12
-
$4,857 AUD
View
Retailer 13
-
$4,910 AUD
View
Price last confirmed 11 days ago
A
Retailer 14
-
$5,283 AUD
View
B+
Retailer 15
-
$5,395 AUD
View
B+
Retailer 16
-
$5,405 AUD
View
B+
Retailer 17
-
$7,798 AUD
View
Most Expensive
B
NZ Jewellers
7b6f7e23-934c-4b3f-86d3-f24d15d103fb · Nov 5
$8,147 AUD
$5,703 USD
View
17 more retailers have this diamond
Prices start from $3,491 AUDSave up to $4,655 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
$3,491 AUD