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Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 1419051647

Certificate GIA 1419051647

Diamond specifications and retailer prices

From $4,223 AUD
As of November 6, 2026
Save $6,820 AUD (62%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $11,043 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 1419051647. Listed at 14 retailers as of November 5, 2026, with prices from $4,223 to $11,043, a $6,820 spread on the same certified stone. Diamond Quarter lists it at $11,043. 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
FluorescenceVery Strong
Crown angle35.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1419051647
Dimensions6.81 × 6.77 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Indented Natural, Needle
Top View
6.81 mm6.77 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceVery Strong
CertificateGIA 1419051647
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: $5,437 AUD|Low: $4,114 AUD|High: $9,958 AUD|Avg: $6,026 AUD|-4.9%
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
November 6, 2026
Retailer 10$4,223 AUD
Retailer 7$4,421 AUD
Retailer 13$4,750 AUD
Retailer 4$5,147 AUD
Retailer 12$5,147 AUD
Retailer 11$5,345 AUD
Retailer 1$5,437 AUD
Retailer 6$5,718 AUD
Retailer 5$5,938 AUD
Retailer 8$6,030 AUD
Retailer 2$6,430 AUD
Retailer 9$9,500 AUD
Retailer 3$9,898 AUD

40 data points across 13 retailers

14 retailers$4,223 AUD to $11,043 AUD

A
Cheapest Retailer
-
$4,223 AUD
A
Retailer 2
-
$4,421 AUD
View
A
Retailer 3
-
$4,750 AUD
View
Final sale: no returns
Retailer 4
-
$5,147 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$5,147 AUD
View
B+
Retailer 6
-
$5,345 AUD
View
B+
Retailer 7
-
$5,437 AUD
View
B+
Retailer 8
-
$5,718 AUD
View
B+
Retailer 9
-
$5,938 AUD
View
B+
Retailer 10
-
$6,030 AUD
View
Retailer 11
-
$6,430 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$9,500 AUD
View
B
Retailer 13
-
$9,898 AUD
View
Most Expensive
B
Diamond Quarter
1.2SI2D14474D8AN · Nov 5
$11,043 AUD
£6,087 GBP
View
13 more retailers have this diamond
Prices start from $4,223 AUDSave up to $6,820 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
$4,223 AUD