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Oval|Natural|GIA

1.21ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 6542388209

Certificate GIA 6542388209

Diamond specifications and retailer prices

From HK$30,589 HKD
As of November 5, 2026
Save HK$26,318 HKD (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$62,417 HKD at NZ Jewellers · As of October 23, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542388209. Listed at 16 retailers as of November 4, 2026, with a 86% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542388209
Dimensions8.23 × 5.94 × 3.75 mm
L/W Ratio1.39
Top View
8.23 mm5.94 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542388209
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

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 5
Current: HK$62,417 HKD|Low: HK$30,589 HKD|High: HK$62,417 HKD|Avg: HK$39,450 HKD
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 13HK$30,589 HKD
Retailer 7HK$31,248 HKD
Retailer 3HK$33,066 HKD
Retailer 16HK$33,897 HKD
Retailer 2HK$34,751 HKD
Retailer 10HK$35,276 HKD
Retailer 5HK$35,825 HKD
Retailer 14HK$35,825 HKD
Retailer 15HK$35,825 HKD
Retailer 8HK$36,781 HKD
Retailer 4HK$37,478 HKD
Retailer 9HK$40,308 HKD
Retailer 6HK$41,334 HKD
Retailer 11HK$43,709 HKD
Retailer 12HK$56,907 HKD
NZ JewellersHK$62,417 HKD

31 data points across 16 retailers

16 retailersHK$30,589 HKD to HK$56,907 HKD

B+
Cheapest Retailer
-
HK$30,589 HKD
B+
Retailer 2
-
HK$31,248 HKD
View
B+
Retailer 3
-
HK$33,066 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$33,897 HKD
View
B+
Retailer 5
-
HK$34,751 HKD
View
B+
Retailer 6
-
HK$35,276 HKD
View
Retailer 7
-
HK$35,825 HKD
View
Price last confirmed 12 days ago
Retailer 8
-
HK$35,825 HKD
View
Price last confirmed 12 days ago
Retailer 9
-
HK$35,825 HKD
View
Price last confirmed 11 days ago
Retailer 10
-
HK$36,781 HKD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
HK$37,478 HKD
View
B+
Retailer 12
-
HK$40,308 HKD
View
Retailer 13
-
HK$41,334 HKD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
HK$43,709 HKD
View
B
Retailer 15
-
HK$56,907 HKD
View
Most Expensive
NZ Jewellers
aa22a294-41c5-4041-bda9-a3e21c25432e · Oct 23
HK$62,417 HKD
$7,964 USD
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from HK$30,589 HKDSave up to HK$26,318 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$30,589 HKD