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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 2537841477

Certificate GIA 2537841477

Diamond specifications and retailer prices

From $2,310 AUD
As of November 6, 2026
Save $4,291 AUD (65%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,600 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2537841477. Listed at 17 retailers as of November 5, 2026, with prices from $2,310 to $6,600, a $4,291 spread on the same certified stone. NZ Jewellers lists it at $6,600. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 2537841477
Dimensions6.65 × 6.56 × 4.20 mm
L/W Ratio1.01
Top View
6.65 mm6.56 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2537841477
Side View
Table 58.0%Crown 38°Girdle: STK-THKPavilion 40°Culet: NoneDepth 63.5%

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: $3,103 AUD|Low: $2,291 AUD|High: $5,596 AUD|Avg: $3,458 AUD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12$2,310 AUD
Retailer 13$2,675 AUD
Retailer 9$2,904 AUD
Retailer 2$3,074 AUD
Retailer 11$3,085 AUD
Retailer 1$3,103 AUD
Retailer 4$3,157 AUD
Retailer 3$3,302 AUD
Retailer 7$3,622 AUD
Retailer 5$3,643 AUD
Retailer 8$3,852 AUD
Retailer 6$3,912 AUD
Retailer 10$5,515 AUD

45 data points across 13 retailers

17 retailers$2,310 AUD to $6,600 AUD

A
Cheapest Retailer
-
$2,310 AUD
B+
Retailer 2
-
$2,675 AUD
View
B+
Retailer 3
-
$2,851 AUD
View
A
Retailer 4
-
$2,904 AUD
View
B+
Retailer 5
-
$3,085 AUD
View
B+
Retailer 6
-
$3,103 AUD
View
Retailer 7
-
$3,157 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,205 AUD
View
B+
Retailer 9
-
$3,302 AUD
View
B+
Retailer 10
-
$3,345 AUD
View
B+
Retailer 11
-
$3,622 AUD
View
B
Retailer 12
-
$3,643 AUD
View
B
Retailer 13
-
$3,852 AUD
View
B
Retailer 14
-
$3,912 AUD
View
B
Retailer 15
-
$4,448 AUD
View
B
Retailer 16
-
$5,515 AUD
View
Most Expensive
C
NZ Jewellers
746c22da-335a-403c-ba16-b3ff5194fb2a · Nov 5
$6,600 AUD
$4,535 USD
View
16 more retailers have this diamond
Prices start from $2,310 AUDSave up to $4,291 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
$2,310 AUD