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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 $4,176 AUD
As of November 5, 2026
Save $4,021 AUD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,309 AUD 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: $8,197 AUD|Low: $4,176 AUD|High: $8,532 AUD|Avg: $5,587 AUD|-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 5, 2026
Retailer 7$4,176 AUD
Retailer 9$4,235 AUD
Retailer 3$4,283 AUD
Retailer 10$4,705 AUD
Retailer 11$4,769 AUD
Retailer 6$4,929 AUD
Retailer 2$5,443 AUD
Retailer 5$5,464 AUD
Retailer 4$5,743 AUD
Retailer 8$7,848 AUD
NZ Jewellers$8,197 AUD

36 data points across 11 retailers

14 retailers$4,176 AUD to $8,197 AUD

A
Cheapest Retailer
-
$4,176 AUD
A
Retailer 2
-
$4,235 AUD
View
A
Retailer 3
-
$4,283 AUD
View
A
Retailer 4
-
$4,705 AUD
View
Retailer 5
-
$4,769 AUD
View
Price last confirmed 44 days ago
Retailer 6
-
$4,769 AUD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$4,929 AUD
View
A
Retailer 8
-
$5,443 AUD
View
A
Retailer 9
-
$5,464 AUD
View
Retailer 10
-
$5,503 AUD
View
Price last confirmed 45 days ago
A
Retailer 11
-
$5,743 AUD
View
B+
Retailer 12
-
$7,848 AUD
View
B+
Retailer 13
-
$8,197 AUD
View
Most Expensive
NZ Jewellers
9b219275-6be2-4f55-83bb-e3333765fee7 · Sep 21
$8,309 AUD
$5,709 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from $4,176 AUDSave up to $4,021 AUD

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
$4,176 AUD