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Round|Natural|GIA

1.20ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6532431880

Certificate GIA 6532431880

Diamond specifications and retailer prices

From $2,194 AUD
As of November 6, 2026
Save $3,086 AUD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,434 AUD at NZ Jewellers · As of September 25, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6532431880. Listed at 16 retailers as of November 4, 2026, with a 141% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6532431880
Dimensions6.78 × 6.75 × 4.21 mm
L/W Ratio1.00
Top View
6.78 mm6.75 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532431880
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,177 AUD|Low: $2,194 AUD|High: $6,177 AUD|Avg: $3,249 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
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 9$2,194 AUD
Retailer 12$2,293 AUD
Retailer 4$2,357 AUD
Retailer 6$2,463 AUD
Retailer 5$2,528 AUD
Retailer 2$2,614 AUD
Retailer 3$2,641 AUD
Retailer 7$2,666 AUD
Retailer 10$2,826 AUD
Retailer 11$2,826 AUD
Retailer 14$2,956 AUD
Retailer 13$3,947 AUD
Retailer 8$4,375 AUD
Retailer 15$5,280 AUD
NZ Jewellers$6,177 AUD

31 data points across 15 retailers

16 retailers$2,194 AUD to $5,280 AUD

A
Cheapest Retailer
-
$2,194 AUD
A
Retailer 2
-
$2,293 AUD
View
A
Retailer 3
-
$2,357 AUD
View
A
Retailer 4
-
$2,463 AUD
View
A
Retailer 5
-
$2,528 AUD
View
Final sale: no returns
A
Retailer 6
-
$2,614 AUD
View
A
Retailer 7
-
$2,641 AUD
View
A
Retailer 8
-
$2,666 AUD
View
A
Retailer 9
-
$2,826 AUD
View
A
Retailer 10
-
$2,826 AUD
View
B+
Retailer 11
-
$2,956 AUD
View
B
Retailer 12
-
$3,947 AUD
View
B
Retailer 13
-
$4,375 AUD
View
B
Retailer 14
-
$5,280 AUD
View
Retailer 15
-
$6,177 AUD
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
961e6826-3066-41fc-8d22-1bc997f18a23 · Sep 25
$6,434 AUD
$4,504 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $2,194 AUDSave up to $3,086 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
$2,194 AUD