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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 3515698616

Certificate GIA 3515698616

Diamond specifications and retailer prices

From HK$32,729 HKD
As of November 5, 2026
Save HK$36,561 HKD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$69,290 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded F 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 3515698616. Listed at 19 retailers as of November 5, 2026, with prices from HK$32,729 to HK$69,290, a HK$36,561 spread on the same certified stone. NZ Jewellers lists it at HK$69,290. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle32.8°
OriginNatural
Grading LabGIA
CertificateGIA 3515698616
Dimensions7.18 × 5.31 × 3.52 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.18 mm5.31 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3515698616
Side View
Table 67.0%CrownGirdle: STK-THKPavilion 32.8°Culet: NDepth 66.3%

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$69,290 HKD|Low: HK$34,931 HKD|High: HK$69,290 HKD|Avg: HK$45,464 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
November 7, 2026
Retailer 3HK$34,931 HKD
Retailer 5HK$35,386 HKD
Retailer 4HK$37,533 HKD
Retailer 12HK$37,533 HKD
Retailer 13HK$37,533 HKD
Retailer 8HK$40,943 HKD
Retailer 11HK$41,766 HKD
Retailer 6HK$44,078 HKD
Retailer 9HK$46,625 HKD
Retailer 10HK$50,543 HKD
Retailer 2HK$51,821 HKD
Retailer 7HK$65,630 HKD
NZ JewellersHK$69,290 HKD

45 data points across 13 retailers

19 retailersHK$32,729 HKD to HK$69,290 HKD

B+
Cheapest Retailer
-
HK$32,729 HKD
B
Retailer 2
-
HK$34,931 HKD
View
B
Retailer 3
-
HK$35,386 HKD
View
B
Retailer 4
-
HK$35,449 HKD
View
B
Retailer 5
-
HK$37,533 HKD
View
B
Retailer 6
-
HK$37,533 HKD
View
Retailer 7
-
HK$37,533 HKD
View
Price last confirmed 9 days ago
B
Retailer 8
-
HK$40,896 HKD
View
B
Retailer 9
-
HK$40,943 HKD
View
Retailer 10
-
HK$41,766 HKD
View
Price last confirmed 29 days ago
B
Retailer 11
-
HK$43,309 HKD
View
Retailer 12
-
HK$44,078 HKD
View
Retailer 13
-
HK$45,723 HKD
View
Price last confirmed 15 days ago
B
Retailer 14
-
HK$46,625 HKD
View
B
Retailer 15
-
HK$46,758 HKD
View
B
Retailer 16
-
HK$50,543 HKD
View
Retailer 17
-
HK$51,821 HKD
View
B
Retailer 18
-
HK$65,630 HKD
View
Most Expensive
B
NZ Jewellers
e84a75b7-a070-4130-8530-22d294cb9c05 · Nov 5
HK$69,290 HKD
$8,841 USD
View
18 more retailers have this diamond
Prices start from HK$32,729 HKDSave up to HK$36,561 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 Radiant
HK$32,729 HKD