CaratHunter
Plans
Round|Natural|GIA

1.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1537184144

Certificate GIA 1537184144

Diamond specifications and retailer prices

From $1,957 NZD
As of November 6, 2026
Save $4,510 NZD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,466 NZD at NZ Jewellers · As of November 5, 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 M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1537184144. Listed at 12 retailers as of November 5, 2026, with prices from $1,957 to $6,466, a $4,510 spread on the same certified stone. NZ Jewellers lists it at $6,466. 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1537184144
Dimensions6.75 × 6.79 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.75 mm6.79 mm1.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1537184144
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: $1,975 NZD|Low: $1,957 NZD|High: $3,688 NZD|Avg: $2,692 NZD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$1,957 NZD
Retailer 1$1,975 NZD
Retailer 6$2,458 NZD
Retailer 2$2,606 NZD
Retailer 7$2,773 NZD
Retailer 5$2,820 NZD
Retailer 3$3,234 NZD
Retailer 4$3,665 NZD

41 data points across 8 retailers

12 retailers$1,957 NZD to $6,466 NZD

A
Cheapest Retailer
-
$1,957 NZD
A
Retailer 2
-
$1,975 NZD
View
B+
Retailer 3
-
$2,458 NZD
View
A
Retailer 4
-
$2,606 NZD
View
B+
Retailer 5
-
$2,651 NZD
View
Retailer 6
-
$2,651 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,773 NZD
View
B+
Retailer 8
-
$2,820 NZD
View
B+
Retailer 9
-
$3,058 NZD
View
B+
Retailer 10
-
$3,234 NZD
View
B+
Retailer 11
-
$3,665 NZD
View
Most Expensive
C
NZ Jewellers
b749ebb2-c399-4b76-b0fb-19c871a8799a · Nov 5
$6,466 NZD
$3,635 USD
View
11 more retailers have this diamond
Prices start from $1,957 NZDSave up to $4,510 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
$1,957 NZD