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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1549993420

Certificate GIA 1549993420

Diamond specifications and retailer prices

From $3,278 NZD
As of November 6, 2026
Save $4,259 NZD (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,111 NZD 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: $3,402 NZD|Low: $3,278 NZD|High: $7,640 NZD|Avg: $4,697 NZD|-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$3,278 NZD
Retailer 1$3,402 NZD
Retailer 8$3,819 NZD
Retailer 3$4,070 NZD
Retailer 4$4,127 NZD
Retailer 10$4,537 NZD
Retailer 5$4,553 NZD
Retailer 6$4,948 NZD
Retailer 7$5,266 NZD
Retailer 9$5,352 NZD
Retailer 11$7,537 NZD

26 data points across 11 retailers

21 retailers$3,278 NZD to $7,537 NZD

A
Cheapest Retailer
-
$3,278 NZD
A
Retailer 2
-
$3,402 NZD
View
A
Retailer 3
-
$3,819 NZD
View
B+
Retailer 4
-
$4,070 NZD
View
B+
Retailer 5
-
$4,089 NZD
View
B+
Retailer 6
-
$4,095 NZD
View
B+
Retailer 7
-
$4,127 NZD
View
Retailer 8
-
$4,315 NZD
View
Price last confirmed 26 days ago
Retailer 9
-
$4,315 NZD
View
Price last confirmed 28 days ago
Retailer 10
-
$4,358 NZD
View
Price last confirmed 40 days ago
B+
Retailer 11
-
$4,537 NZD
View
B+
Retailer 12
-
$4,553 NZD
View
Retailer 13
-
$4,560 NZD
View
Price last confirmed 39 days ago
B+
Retailer 14
-
$4,566 NZD
View
B+
Retailer 15
-
$4,948 NZD
View
Retailer 16
-
$5,029 NZD
View
Price last confirmed 39 days ago
B
Retailer 17
-
$5,266 NZD
View
B+
Retailer 18
-
$5,352 NZD
View
B
Retailer 19
-
$7,537 NZD
View
Retailer 20
-
$9,020 NZD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
161a6c3e-d155-4bbf-a6ce-94c9247895ef · Sep 28
$9,111 NZD
$5,051 USD
View
Price last confirmed 39 days ago
20 more retailers have this diamond
Prices start from $3,278 NZDSave up to $4,259 NZD

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
$3,278 NZD