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Oval|Natural|IGI

1.21ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 823631655

Shape and cutting style on the report: Oval brilliant

Certificate IGI 823631655

Diamond specifications and retailer prices

From HK$13,128 HKD
As of November 1, 2026
Save HK$20,879 HKD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$34,006 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 823631655. Listed at 15 retailers as of November 1, 2026, with prices from HK$13,128 to HK$34,006, a HK$20,879 spread on the same certified stone. NZ Jewellers lists it at HK$34,006. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle36.5°
OriginNatural
Grading LabIGI
CertificateIGI 823631655
Dimensions8.50 × 5.95 × 3.64 mm
L/W Ratio1.43
Girdle conditionFaceted
Top View
8.50 mm5.95 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 823631655
Side View
Table 59.0%Crown 31.4°Girdle: STK-THKPavilion 36.5°Culet: NoneDepth 61.2%

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 1
Current: HK$34,006 HKD|Low: HK$10,847 HKD|High: HK$36,217 HKD|Avg: HK$17,395 HKD|-6.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 8HK$10,847 HKD
Retailer 7HK$13,128 HKD
Retailer 6HK$13,551 HKD
Retailer 5HK$14,734 HKD
Retailer 14HK$14,875 HKD
Retailer 4HK$15,244 HKD
Retailer 13HK$15,385 HKD
Retailer 15HK$15,416 HKD
Retailer 2HK$15,926 HKD
Retailer 16HK$16,286 HKD
Retailer 3HK$17,007 HKD
Retailer 10HK$18,042 HKD
Retailer 11HK$20,040 HKD
Retailer 9HK$21,780 HKD
Retailer 12HK$28,693 HKD
NZ JewellersHK$34,006 HKD

30 data points across 16 retailers

15 retailersHK$13,128 HKD to HK$34,006 HKD

B+
Cheapest Retailer
-
HK$13,128 HKD
B+
Retailer 2
-
HK$13,551 HKD
View
B+
Retailer 3
-
HK$14,734 HKD
View
Retailer 4
-
HK$14,875 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$15,244 HKD
View
B+
Retailer 6
-
HK$15,385 HKD
View
B+
Retailer 7
-
HK$15,416 HKD
View
B+
Retailer 8
-
HK$15,926 HKD
View
B+
Retailer 9
-
HK$16,286 HKD
View
B+
Retailer 10
-
HK$17,007 HKD
View
B
Retailer 11
-
HK$18,042 HKD
View
B
Retailer 12
-
HK$20,040 HKD
View
B
Retailer 13
-
HK$21,780 HKD
View
C
Retailer 14
-
HK$28,693 HKD
View
Most Expensive
C
NZ Jewellers
516db6b8-8eac-4ab3-ba15-a0d0fc2de4e0 · Nov 5
HK$34,006 HKD
$4,339 USD
View
14 more retailers have this diamond
Prices start from HK$13,128 HKDSave up to HK$20,879 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.

B+
1.21ct Oval
HK$13,128 HKD