Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6541775617

Certificate GIA 6541775617

Diamond specifications and retailer prices

From $4,266 NZD
As of November 6, 2026
Save $5,911 NZD (58%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $10,178 NZD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541775617. Listed at 27 retailers as of November 5, 2026, with a 139% 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

1.21
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6541775617
Dimensions6.75 × 6.80 × 4.24 mm
L/W Ratio1.01
Top View
6.75 mm6.80 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541775617
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: $5,513 NZD|Low: $4,266 NZD|High: $9,887 NZD|Avg: $6,325 NZD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$4,266 NZD
Retailer 9$4,739 NZD
Retailer 8$4,883 NZD
Retailer 7$5,293 NZD
Retailer 1$5,513 NZD
Retailer 2$6,007 NZD
Retailer 4$6,781 NZD
Retailer 5$6,786 NZD
Retailer 6$9,743 NZD

39 data points across 9 retailers

27 retailers$4,266 NZD to $10,178 NZD

A
Cheapest Retailer
-
$4,266 NZD
A
Retailer 2
-
$4,739 NZD
View
B+
Retailer 3
-
$4,883 NZD
View
Final sale: no returns
Retailer 4
-
$5,293 NZD
View
Price last confirmed 30 days ago
Retailer 5
-
$5,293 NZD
View
Price last confirmed 51 days ago
Retailer 6
-
$5,293 NZD
View
Price last confirmed 9 days ago
Retailer 7
-
$5,293 NZD
View
Price last confirmed 22 days ago
Retailer 8
-
$5,293 NZD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
$5,341 NZD
View
Retailer 10
-
$5,496 NZD
View
Price last confirmed 39 days ago
B+
Retailer 11
-
$5,513 NZD
View
B+
Retailer 12
-
$5,791 NZD
View
B+
Retailer 13
-
$5,791 NZD
View
B+
Retailer 14
-
$5,989 NZD
View
B+
Retailer 15
-
$6,007 NZD
View
Retailer 16
-
$6,106 NZD
View
Price last confirmed 29 days ago
Retailer 17
-
$6,106 NZD
View
Price last confirmed 46 days ago
Retailer 18
-
$6,106 NZD
View
Price last confirmed 17 days ago
B+
Retailer 19
-
$6,106 NZD
View
Retailer 20
-
$6,777 NZD
View
Price last confirmed 23 days ago
B+
Retailer 21
-
$6,781 NZD
View
B+
Retailer 22
-
$6,786 NZD
View
B
Retailer 23
-
$9,743 NZD
View
Retailer 24
-
$10,178 NZD
View
Price last confirmed 40 days ago
B
Retailer 25
-
$10,178 NZD
View
Retailer 26
-
$10,178 NZD
View
Price last confirmed 49 days ago
Most Expensive
NZ Jewellers
d7c9e451-a9e0-4de9-a2e9-d2c07c332753 · Oct 20
$10,178 NZD
$5,642 USD
View
Price last confirmed 18 days ago
26 more retailers have this diamond
Prices start from $4,266 NZDSave up to $5,911 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
1.21ct Round
$4,266 NZD