CaratHunter
Plans
Round|Natural|GIA

1.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 5553325336

Certificate GIA 5553325336

Diamond specifications and retailer prices

From $2,962 NZD
As of November 5, 2026
Save $872 NZD (23%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,870 NZD at NZ Jewellers · As of September 28, 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 5553325336. Listed at 10 retailers as of November 4, 2026, with a 29% 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
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5553325336
Dimensions6.76 × 6.80 × 4.22 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Needle
Top View
6.76 mm6.80 mm1.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553325336
Side View
Table 58.0%Crown 35.5°GirdlePavilion 41°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,437 NZD|Low: $2,816 NZD|High: $4,550 NZD|Avg: $3,388 NZD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$2,816 NZD
Retailer 6$2,816 NZD
Retailer 5$2,962 NZD
Retailer 1$3,437 NZD
Retailer 2$3,834 NZD
Retailer 4$4,550 NZD

27 data points across 6 retailers

10 retailers$2,962 NZD to $3,834 NZD

Retailer 1
-
$2,816 NZD
Price last confirmed 29 days ago
Retailer 2
-
$2,816 NZD
View
Price last confirmed 29 days ago
Retailer 3
-
$2,948 NZD
View
Price last confirmed 38 days ago
B+
Retailer 4
-
$2,962 NZD
View
Retailer 5
-
$3,250 NZD
View
Price last confirmed 68 days ago
Retailer 6
-
$3,250 NZD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$3,437 NZD
View
B
Retailer 8
-
$3,834 NZD
View
Retailer 9
-
$6,870 NZD
View
Price last confirmed 66 days ago
Most Expensive
NZ Jewellers
942493f4-b33a-49ad-9bc0-a06af7574dbc · Sep 28
$6,870 NZD
$3,862 USD
View
Price last confirmed 39 days ago
9 more retailers have this diamond
Prices start from $2,962 NZDSave up to $872 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.

B+
1.21ct Round
$2,962 NZD