CaratHunter
Plans
Oval|Natural|GIA

1.21ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2547470600

Certificate GIA 2547470600

Diamond specifications and retailer prices

From HK$12,783 HKD
As of November 6, 2026
Save HK$16,294 HKD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$35,887 HKD at NZ Jewellers · As of September 25, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2547470600. Listed at 17 retailers as of November 4, 2026, with a 127% 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 2547470600
Dimensions8.31 × 5.93 × 3.77 mm
L/W Ratio1.40
Top View
8.31 mm5.93 mm1.21 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2547470600
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 39.7°Culet: NoneDepth 63.6%

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 6
Current: HK$17,971 HKD|Low: HK$12,650 HKD|High: HK$29,962 HKD|Avg: HK$17,912 HKD|-1.1%
Retailer 1
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
November 6, 2026
Retailer 4HK$12,783 HKD
Retailer 15HK$12,838 HKD
Retailer 11HK$13,919 HKD
Retailer 12HK$14,092 HKD
Retailer 6HK$14,922 HKD
Retailer 7HK$15,440 HKD
Retailer 3HK$16,349 HKD
Retailer 9HK$16,349 HKD
Retailer 14HK$16,459 HKD
Retailer 1HK$17,971 HKD
Retailer 5HK$18,238 HKD
Retailer 8HK$20,315 HKD
Retailer 2HK$22,728 HKD
Retailer 13HK$25,660 HKD
Retailer 10HK$29,077 HKD

30 data points across 15 retailers

17 retailersHK$12,783 HKD to HK$29,077 HKD

A
Cheapest Retailer
-
HK$12,783 HKD
A
Retailer 2
-
HK$12,838 HKD
View
A
Retailer 3
-
HK$13,919 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$14,092 HKD
View
A
Retailer 5
-
HK$14,922 HKD
View
B+
Retailer 6
-
HK$15,440 HKD
View
B+
Retailer 7
-
HK$16,349 HKD
View
B+
Retailer 8
-
HK$16,349 HKD
View
B+
Retailer 9
-
HK$16,459 HKD
View
B+
Retailer 10
-
HK$17,971 HKD
View
B+
Retailer 11
-
HK$18,238 HKD
View
Retailer 12
-
HK$18,238 HKD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
HK$20,315 HKD
View
B
Retailer 14
-
HK$22,728 HKD
View
B
Retailer 15
-
HK$25,660 HKD
View
B
Retailer 16
-
HK$29,077 HKD
View
Most Expensive
NZ Jewellers
a4adac43-706e-42c0-8ebb-5eb68a457049 · Sep 25
HK$35,887 HKD
$4,579 USD
View
Price last confirmed 42 days ago
16 more retailers have this diamond
Prices start from HK$12,783 HKDSave up to HK$16,294 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 Oval
HK$12,783 HKD