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Round|Natural|IGI

1.21ct K IF Round Natural Diamond

EX • K/IF • IGI 813663903

Shape and cutting style on the report: Round brilliant

Certificate IGI 813663903

Diamond specifications and retailer prices

From HK$13,402 HKD
As of November 1, 2026
Save HK$6,097 HKD (31%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$37,635 HKD at NZ Jewellers · As of September 24, 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 813663903. Listed at 14 retailers as of November 1, 2026, with a 45% 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
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 813663903
Dimensions6.80 × 6.83 × 4.22 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.80 mm6.83 mm1.21 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 813663903
Side View
Table 57.0%Crown 35.5°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 61.9%

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 1
Current: HK$17,987 HKD|Low: HK$13,402 HKD|High: HK$27,360 HKD|Avg: HK$18,290 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 6HK$13,676 HKD
Retailer 4HK$13,911 HKD
Retailer 9HK$15,526 HKD
Retailer 5HK$17,517 HKD
Retailer 1HK$17,987 HKD
Retailer 2HK$19,280 HKD
Retailer 3HK$19,499 HKD
Retailer 7HK$21,984 HKD
Retailer 8HK$27,172 HKD

37 data points across 9 retailers

14 retailersHK$13,402 HKD to HK$19,499 HKD

A
Cheapest Retailer
-
HK$13,402 HKD
A
Retailer 2
-
HK$13,676 HKD
View
A
Retailer 3
-
HK$13,911 HKD
View
Retailer 4
-
HK$15,432 HKD
View
Price last confirmed 44 days ago
Retailer 5
-
HK$15,432 HKD
View
Price last confirmed 36 days ago
A
Retailer 6
-
HK$15,526 HKD
View
A
Retailer 7
-
HK$17,517 HKD
View
A
Retailer 8
-
HK$17,830 HKD
View
A
Retailer 9
-
HK$17,987 HKD
View
A
Retailer 10
-
HK$19,280 HKD
View
A
Retailer 11
-
HK$19,499 HKD
View
Retailer 12
-
HK$21,984 HKD
View
Price last confirmed 11 days ago
Retailer 13
-
HK$27,172 HKD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
d551b695-9eec-495c-9d0f-dda8f08e3623 · Sep 24
HK$37,635 HKD
$4,802 USD
View
Price last confirmed 43 days ago
13 more retailers have this diamond
Prices start from HK$13,402 HKDSave up to HK$6,097 HKD

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
HK$13,402 HKD