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Round|Natural|GIA

1.20ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 5343810946

Certificate GIA 5343810946

Diamond specifications and retailer prices

From $2,211 AUD
As of November 6, 2026
Save $4,208 AUD (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,420 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5343810946. Listed at 11 retailers as of November 5, 2026, with prices from $2,211 to $6,420, a $4,208 spread on the same certified stone. NZ Jewellers lists it at $6,420. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5343810946
Dimensions6.78 × 6.72 × 4.25 mm
L/W Ratio1.01
Top View
6.78 mm6.72 mm1.20 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5343810946
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,420 AUD|Low: $2,176 AUD|High: $6,420 AUD|Avg: $3,099 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$2,211 AUD
Retailer 12$2,398 AUD
Retailer 2$2,623 AUD
Retailer 7$2,633 AUD
Retailer 9$2,633 AUD
Retailer 8$2,754 AUD
Retailer 11$2,828 AUD
Retailer 3$2,857 AUD
Retailer 10$3,037 AUD
Retailer 4$3,171 AUD
Retailer 5$3,566 AUD
NZ Jewellers$6,420 AUD

32 data points across 12 retailers

11 retailers$2,211 AUD to $6,420 AUD

B+
Cheapest Retailer
-
$2,211 AUD
B+
Retailer 2
-
$2,398 AUD
View
B+
Retailer 3
-
$2,623 AUD
View
B+
Retailer 4
-
$2,633 AUD
View
Retailer 5
-
$2,633 AUD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$2,754 AUD
View
B
Retailer 7
-
$2,828 AUD
View
B
Retailer 8
-
$2,857 AUD
View
B
Retailer 9
-
$3,037 AUD
View
B
Retailer 10
-
$3,566 AUD
View
Most Expensive
C
NZ Jewellers
572ae6f1-e4ca-4ccd-84f4-7f95c5ce9926 · Nov 5
$6,420 AUD
$4,494 USD
View
10 more retailers have this diamond
Prices start from $2,211 AUDSave up to $4,208 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.

B+
1.20ct Round
$2,211 AUD