CaratHunter
Plans
Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2557507607

Certificate GIA 2557507607

Diamond specifications and retailer prices

From $3,876 AUD
As of November 6, 2026
Save $5,094 AUD (57%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,970 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 2557507607. Listed at 15 retailers as of November 5, 2026, with prices from $3,876 to $8,970, a $5,094 spread on the same certified stone. NZ Jewellers lists it at $8,970. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557507607
Dimensions6.81 × 6.77 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.81 mm6.77 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557507607
Side View
Table 60.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.7%

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: $8,970 AUD|Low: $3,840 AUD|High: $9,224 AUD|Avg: $5,581 AUD|-2.8%
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 15$3,876 AUD
Retailer 10$4,063 AUD
Retailer 11$4,093 AUD
Retailer 5$4,304 AUD
Retailer 6$4,354 AUD
Retailer 13$4,485 AUD
Retailer 14$4,528 AUD
Retailer 4$4,694 AUD
Retailer 8$4,853 AUD
Retailer 2$4,927 AUD
Retailer 7$6,103 AUD
Retailer 3$7,028 AUD
Retailer 12$7,778 AUD
Retailer 9$8,585 AUD
NZ Jewellers$8,970 AUD

27 data points across 15 retailers

15 retailers$3,876 AUD to $8,970 AUD

A
Cheapest Retailer
-
$3,876 AUD
A
Retailer 2
-
$4,063 AUD
View
A
Retailer 3
-
$4,093 AUD
View
A
Retailer 4
-
$4,304 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,354 AUD
View
A
Retailer 6
-
$4,485 AUD
View
A
Retailer 7
-
$4,528 AUD
View
A
Retailer 8
-
$4,694 AUD
View
A
Retailer 9
-
$4,853 AUD
View
A
Retailer 10
-
$4,927 AUD
View
B+
Retailer 11
-
$5,188 AUD
View
B+
Retailer 12
-
$7,028 AUD
View
B+
Retailer 13
-
$7,778 AUD
View
B
Retailer 14
-
$8,585 AUD
View
Most Expensive
B
NZ Jewellers
b5e2a5a0-232f-4fbd-9b97-2bc3c786694f · Nov 5
$8,970 AUD
$6,279 USD
View
14 more retailers have this diamond
Prices start from $3,876 AUDSave up to $5,094 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
$3,876 AUD