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Round|Natural|GIA

1.20ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6552607191

Certificate GIA 6552607191

Diamond specifications and retailer prices

From $1,517 AUD
As of November 4, 2026
Save $1,107 AUD (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,460 AUD at NZ Jewellers · As of September 10, 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552607191. Listed at 14 retailers as of November 2, 2026, with a 73% 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552607191
Dimensions6.86 × 6.81 × 4.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.86 mm6.81 mm1.20 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552607191
Side View
Table 59.0%Crown 33.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 60.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $4,954 AUD|Low: $1,498 AUD|High: $5,358 AUD|Avg: $2,427 AUD|-7.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$1,517 AUD
Retailer 4$1,538 AUD
Retailer 10$1,876 AUD
Retailer 3$2,031 AUD
Retailer 6$2,031 AUD
Retailer 5$2,048 AUD
Retailer 11$2,126 AUD
Retailer 9$2,251 AUD
Retailer 8$2,344 AUD
Retailer 2$2,624 AUD
NZ Jewellers$4,954 AUD

39 data points across 11 retailers

14 retailers$1,517 AUD to $2,624 AUD

A
Cheapest Retailer
-
$1,517 AUD
A
Retailer 2
-
$1,538 AUD
View
B+
Retailer 3
-
$2,031 AUD
View
Retailer 4
-
$2,031 AUD
View
Price last confirmed 8 days ago
Retailer 5
-
$2,031 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,048 AUD
View
Retailer 7
-
$2,126 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
$2,238 AUD
View
Price last confirmed 60 days ago
B+
Retailer 9
-
$2,251 AUD
View
B+
Retailer 10
-
$2,344 AUD
View
Retailer 11
-
$2,583 AUD
View
Price last confirmed 60 days ago
B+
Retailer 12
-
$2,624 AUD
View
Retailer 13
-
$4,954 AUD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
dbd427c3-6d29-4a33-9572-9cb6a8fd4439 · Sep 10
$5,460 AUD
$3,822 USD
View
Price last confirmed 56 days ago
13 more retailers have this diamond
Prices start from $1,517 AUDSave up to $1,107 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
$1,517 AUD