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Round|Natural|IGI

1.21ct I IF Round Natural Diamond

EX • I/IF • IGI 613369287

Shape and cutting style on the report: Round brilliant

Certificate IGI 613369287

Diamond specifications and retailer prices

From $5,175 NZD
As of November 5, 2026
Save $4,984 NZD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,298 NZD at NZ Jewellers · As of September 21, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 613369287. Listed at 14 retailers as of November 5, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
I
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 613369287
Dimensions6.77 × 6.81 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.77 mm6.81 mm1.21 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 613369287
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.8%

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 5
Current: $10,160 NZD|Low: $5,175 NZD|High: $10,574 NZD|Avg: $6,943 NZD|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 8$5,175 NZD
Retailer 3$5,309 NZD
Retailer 2$5,484 NZD
Retailer 10$5,832 NZD
Retailer 11$5,911 NZD
Retailer 4$6,106 NZD
Retailer 5$6,747 NZD
Retailer 7$6,772 NZD
Retailer 6$7,118 NZD
Retailer 9$9,727 NZD
NZ Jewellers$10,160 NZD

37 data points across 11 retailers

14 retailers$5,175 NZD to $10,160 NZD

A
Cheapest Retailer
-
$5,175 NZD
A
Retailer 2
-
$5,309 NZD
View
A
Retailer 3
-
$5,484 NZD
View
A
Retailer 4
-
$5,832 NZD
View
Retailer 5
-
$5,911 NZD
View
Price last confirmed 45 days ago
Retailer 6
-
$5,911 NZD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$6,106 NZD
View
A
Retailer 8
-
$6,747 NZD
View
A
Retailer 9
-
$6,772 NZD
View
Retailer 10
-
$6,821 NZD
View
Price last confirmed 46 days ago
A
Retailer 11
-
$7,118 NZD
View
B+
Retailer 12
-
$9,727 NZD
View
B+
Retailer 13
-
$10,160 NZD
View
Most Expensive
NZ Jewellers
9b219275-6be2-4f55-83bb-e3333765fee7 · Sep 21
$10,298 NZD
$5,709 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from $5,175 NZDSave up to $4,984 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
$5,175 NZD