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Round|Natural|GIA

1.20ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7541878698

Certificate GIA 7541878698

Diamond specifications and retailer prices

From $3,325 NZD
As of November 6, 2026
Save $4,340 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,171 NZD at NZ Jewellers · As of September 26, 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 7541878698. Listed at 19 retailers as of November 4, 2026, with a 131% 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7541878698
Dimensions6.72 × 6.78 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cloud, Indented Natural, Needle
Top View
6.72 mm6.78 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7541878698
Side View
Table 59.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.3%

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: $3,458 NZD|Low: $3,325 NZD|High: $7,777 NZD|Avg: $4,821 NZD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$3,325 NZD
Retailer 1$3,458 NZD
Retailer 5$3,882 NZD
Retailer 2$4,131 NZD
Retailer 10$4,158 NZD
Retailer 7$4,613 NZD
Retailer 3$4,629 NZD
Retailer 4$5,354 NZD
Retailer 6$5,441 NZD
Retailer 8$7,665 NZD

32 data points across 10 retailers

19 retailers$3,325 NZD to $7,665 NZD

A
Cheapest Retailer
-
$3,325 NZD
A
Retailer 2
-
$3,458 NZD
View
A
Retailer 3
-
$3,882 NZD
View
B+
Retailer 4
-
$4,131 NZD
View
B+
Retailer 5
-
$4,158 NZD
View
B+
Retailer 6
-
$4,158 NZD
View
Retailer 7
-
$4,387 NZD
View
Price last confirmed 40 days ago
Retailer 8
-
$4,387 NZD
View
Price last confirmed 26 days ago
Retailer 9
-
$4,387 NZD
View
Price last confirmed 30 days ago
B+
Retailer 10
-
$4,510 NZD
View
Retailer 11
-
$4,589 NZD
View
Price last confirmed 39 days ago
B+
Retailer 12
-
$4,613 NZD
View
B+
Retailer 13
-
$4,629 NZD
View
B+
Retailer 14
-
$4,638 NZD
View
Retailer 15
-
$5,062 NZD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
$5,354 NZD
View
B+
Retailer 17
-
$5,441 NZD
View
B
Retailer 18
-
$7,665 NZD
View
Most Expensive
NZ Jewellers
d320849b-3ab1-40f7-8648-c88507991006 · Sep 26
$9,171 NZD
$5,084 USD
View
Price last confirmed 41 days ago
18 more retailers have this diamond
Prices start from $3,325 NZDSave up to $4,340 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
$3,325 NZD