CaratHunter
Plans
Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1549993420

Certificate GIA 1549993420

Diamond specifications and retailer prices

From $2,644 AUD
As of November 6, 2026
Save $3,436 AUD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,351 AUD at NZ Jewellers · As of September 28, 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 top-tier cut grade and certified by GIA 1549993420. Listed at 21 retailers as of November 4, 2026, with a 130% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1549993420
Dimensions6.73 × 6.77 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Etch Channel, Crystal, Cloud, Needle
Top View
6.73 mm6.77 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549993420
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: $2,745 AUD|Low: $2,644 AUD|High: $6,164 AUD|Avg: $3,789 AUD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$2,644 AUD
Retailer 1$2,745 AUD
Retailer 8$3,081 AUD
Retailer 3$3,283 AUD
Retailer 4$3,330 AUD
Retailer 10$3,660 AUD
Retailer 5$3,673 AUD
Retailer 6$3,992 AUD
Retailer 7$4,248 AUD
Retailer 9$4,318 AUD
Retailer 11$6,081 AUD

26 data points across 11 retailers

21 retailers$2,644 AUD to $6,081 AUD

A
Cheapest Retailer
-
$2,644 AUD
A
Retailer 2
-
$2,745 AUD
View
A
Retailer 3
-
$3,081 AUD
View
B+
Retailer 4
-
$3,283 AUD
View
B+
Retailer 5
-
$3,299 AUD
View
B+
Retailer 6
-
$3,304 AUD
View
B+
Retailer 7
-
$3,330 AUD
View
Retailer 8
-
$3,481 AUD
View
Price last confirmed 25 days ago
Retailer 9
-
$3,481 AUD
View
Price last confirmed 27 days ago
Retailer 10
-
$3,516 AUD
View
Price last confirmed 39 days ago
B+
Retailer 11
-
$3,660 AUD
View
B+
Retailer 12
-
$3,673 AUD
View
Retailer 13
-
$3,679 AUD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$3,684 AUD
View
B+
Retailer 15
-
$3,992 AUD
View
Retailer 16
-
$4,058 AUD
View
Price last confirmed 38 days ago
B
Retailer 17
-
$4,248 AUD
View
B+
Retailer 18
-
$4,318 AUD
View
B
Retailer 19
-
$6,081 AUD
View
Retailer 20
-
$7,277 AUD
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
161a6c3e-d155-4bbf-a6ce-94c9247895ef · Sep 28
$7,351 AUD
$5,051 USD
View
Price last confirmed 39 days ago
20 more retailers have this diamond
Prices start from $2,644 AUDSave up to $3,436 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
$2,644 AUD