CaratHunter
Plans
Oval|Natural|GIA

1.21ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 6545974485

Certificate GIA 6545974485

Diamond specifications and retailer prices

From HK$21,177 HKD
As of November 6, 2026
Save HK$30,731 HKD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$51,907 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545974485. Listed at 20 retailers as of November 2, 2026, with prices from HK$21,177 to HK$51,907, a HK$30,731 spread on the same certified stone. MOH London lists it at HK$51,907. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545974485
Dimensions8.50 × 6.04 × 3.53 mm
L/W Ratio1.41
Top View
8.50 mm6.04 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545974485
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

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 6
Current: HK$51,907 HKD|Low: HK$15,346 HKD|High: HK$52,186 HKD|Avg: HK$24,274 HKD|+40.8%
MOH London
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 7HK$15,346 HKD
Retailer 5HK$16,991 HKD
Retailer 9HK$17,430 HKD
Retailer 4HK$17,908 HKD
Retailer 6HK$18,214 HKD
Retailer 8HK$19,374 HKD
Retailer 10HK$19,750 HKD
Retailer 12HK$23,348 HKD
Retailer 3HK$24,962 HKD
Retailer 19HK$26,412 HKD
Retailer 16HK$26,718 HKD
Retailer 20HK$27,039 HKD
Retailer 17HK$30,582 HKD
Retailer 2HK$30,919 HKD
Retailer 14HK$31,436 HKD
Retailer 11HK$31,538 HKD
Retailer 15HK$35,112 HKD
Retailer 18HK$35,770 HKD
Retailer 13HK$37,886 HKD
MOH LondonHK$51,907 HKD

33 data points across 20 retailers

20 retailersHK$21,177 HKD to HK$51,907 HKD

Retailer 1
-
HK$15,346 HKD
Price last confirmed 16 days ago
Retailer 2
-
HK$16,991 HKD
View
Price last confirmed 15 days ago
Retailer 3
-
HK$17,908 HKD
View
Price last confirmed 16 days ago
Retailer 4
-
HK$18,214 HKD
View
Price last confirmed 17 days ago
Retailer 5
-
HK$19,750 HKD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
HK$21,177 HKD
View
Retailer 7
-
HK$23,348 HKD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
HK$24,962 HKD
View
B
Retailer 9
-
HK$26,412 HKD
View
B
Retailer 10
-
HK$26,718 HKD
View
B
Retailer 11
-
HK$27,039 HKD
View
B
Retailer 12
-
HK$30,582 HKD
View
B+
Retailer 13
-
HK$30,919 HKD
View
B
Retailer 14
-
HK$31,436 HKD
View
Retailer 15
-
HK$31,538 HKD
View
Price last confirmed 22 days ago
B
Retailer 16
-
HK$35,112 HKD
View
B
Retailer 17
-
HK$35,770 HKD
View
B
Retailer 18
-
HK$37,886 HKD
View
Retailer 19
-
HK$43,811 HKD
View
Price last confirmed 43 days ago
Most Expensive
C
MOH London
7B76E8ED6 · Nov 2
HK$51,907 HKD
£5,215 GBP
View
19 more retailers have this diamond
Prices start from HK$21,177 HKDSave up to HK$30,731 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$21,177 HKD