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Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7556731232

Certificate GIA 7556731232

Diamond specifications and retailer prices

From $3,707 AUD
As of November 6, 2026
Save $4,860 AUD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $9,085 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7556731232. Listed at 23 retailers as of November 5, 2026, with a 131% 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7556731232
Dimensions6.90 × 6.92 × 4.10 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.90 mm6.92 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7556731232
Side View
Table 62.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.4%

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: $9,085 AUD|Low: $3,707 AUD|High: $9,085 AUD|Avg: $5,809 AUD
Queensmith
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
November 6, 2026
Retailer 3$3,707 AUD
Retailer 2$3,844 AUD
Retailer 17$4,424 AUD
Retailer 14$4,647 AUD
Retailer 10$4,705 AUD
Retailer 4$4,916 AUD
Retailer 6$4,916 AUD
Retailer 12$5,056 AUD
Retailer 5$5,106 AUD
Retailer 11$5,155 AUD
Retailer 7$5,667 AUD
Retailer 8$5,673 AUD
Retailer 15$5,720 AUD
Retailer 13$6,001 AUD
Retailer 16$8,200 AUD
Retailer 9$8,566 AUD
Queensmith$9,085 AUD

22 data points across 17 retailers

23 retailers$3,707 AUD to $8,566 AUD

A
Cheapest Retailer
-
$3,707 AUD
A
Retailer 2
-
$3,844 AUD
View
B+
Retailer 3
-
$4,401 AUD
View
B+
Retailer 4
-
$4,424 AUD
View
B+
Retailer 5
-
$4,477 AUD
View
B+
Retailer 6
-
$4,538 AUD
View
Final sale: no returns
B+
Retailer 7
-
$4,550 AUD
View
B+
Retailer 8
-
$4,555 AUD
View
B+
Retailer 9
-
$4,647 AUD
View
B+
Retailer 10
-
$4,705 AUD
View
B+
Retailer 11
-
$4,916 AUD
View
Retailer 12
-
$4,916 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$5,056 AUD
View
B+
Retailer 14
-
$5,106 AUD
View
B+
Retailer 15
-
$5,126 AUD
View
B+
Retailer 16
-
$5,155 AUD
View
Retailer 17
-
$5,253 AUD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
$5,673 AUD
View
B+
Retailer 19
-
$5,720 AUD
View
B+
Retailer 20
-
$6,001 AUD
View
B
Retailer 21
-
$8,200 AUD
View
B
Retailer 22
-
$8,566 AUD
View
Most Expensive
Queensmith
7556731232 · Oct 28
$9,085 AUD
£4,915 GBP
View
Price last confirmed 9 days ago
22 more retailers have this diamond
Prices start from $3,707 AUDSave up to $4,860 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
$3,707 AUD