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Round|Natural|GIA

1.20ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6561016277

Certificate GIA 6561016277

Diamond specifications and retailer prices

From $3,967 AUD
As of November 6, 2026
Save $4,785 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,261 AUD at Queensmith · As of October 28, 2026
View at Queensmith

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 6561016277. Listed at 17 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6561016277
Dimensions6.75 × 6.81 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Needle
Top View
6.75 mm6.81 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561016277
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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: $9,261 AUD|Low: $3,967 AUD|High: $9,289 AUD|Avg: $6,027 AUD|+2.6%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$3,967 AUD
Retailer 2$4,103 AUD
Retailer 5$4,617 AUD
Retailer 9$4,844 AUD
Retailer 4$5,398 AUD
Retailer 3$5,504 AUD
Retailer 6$6,104 AUD
Retailer 7$8,752 AUD
Queensmith$9,261 AUD

34 data points across 9 retailers

17 retailers$3,967 AUD to $8,752 AUD

A
Cheapest Retailer
-
$3,967 AUD
A
Retailer 2
-
$4,103 AUD
View
A
Retailer 3
-
$4,617 AUD
View
A
Retailer 4
-
$4,844 AUD
View
Final sale: no returns
A
Retailer 5
-
$4,860 AUD
View
Retailer 6
-
$5,248 AUD
View
Price last confirmed 17 days ago
Retailer 7
-
$5,248 AUD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$5,257 AUD
View
A
Retailer 9
-
$5,398 AUD
View
Retailer 10
-
$5,450 AUD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$5,455 AUD
View
B+
Retailer 12
-
$5,504 AUD
View
Retailer 13
-
$6,055 AUD
View
Price last confirmed 19 days ago
B+
Retailer 14
-
$6,104 AUD
View
B
Retailer 15
-
$8,752 AUD
View
Retailer 16
-
$9,144 AUD
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6561016277 · Oct 28
$9,261 AUD
£5,105 GBP
View
Price last confirmed 8 days ago
16 more retailers have this diamond
Prices start from $3,967 AUDSave up to $4,785 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
$3,967 AUD