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Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1565410539

Certificate GIA 1565410539

Diamond specifications and retailer prices

From HK$15,623 HKD
SGD 2,691 SGD
As of October 27, 2026
Save HK$6,646 HKD (30%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$28,803 HKD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565410539. Listed at 13 retailers as of October 27, 2026, with a 43% 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1565410539
Dimensions6.86 × 6.89 × 4.21 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.86 mm6.89 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1565410539
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NDepth 61.2%

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: Oct 27
Current: HK$15,623 HKD|Low: HK$15,623 HKD|High: HK$29,782 HKD|Avg: HK$20,856 HKD|-8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 27, 2026
Retailer 1HK$15,623 HKD
Retailer 9HK$15,919 HKD
Retailer 10HK$16,968 HKD
Retailer 8HK$17,025 HKD
Retailer 3HK$17,621 HKD
Retailer 7HK$18,065 HKD
Retailer 2HK$18,486 HKD
Retailer 11HK$20,085 HKD
Retailer 12HK$21,224 HKD
Retailer 5HK$21,278 HKD
Retailer 6HK$21,781 HKD
Retailer 4HK$22,270 HKD
Wholesale Diamonds DirectHK$28,803 HKD

31 data points across 13 retailers

13 retailersHK$15,623 HKD to HK$22,270 HKD

A
Cheapest Retailer
-
HK$15,623 HKD
SGD 2,691 SGD
A
Retailer 2
-
HK$15,919 HKD
$2,029 USD
View
Retailer 3
-
HK$16,968 HKD
$2,163 USD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$17,025 HKD
$2,170 USD
View
Price last confirmed 7 days ago
Retailer 5
-
HK$17,621 HKD
$2,246 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
HK$18,065 HKD
£1,813 GBP
View
B+
Retailer 7
-
HK$18,486 HKD
SGD 3,184 SGD
View
Retailer 8
-
HK$20,085 HKD
$2,560 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
HK$21,224 HKD
$2,705 USD
View
B+
Retailer 10
-
HK$21,278 HKD
$2,712 USD
View
B+
Retailer 11
-
HK$21,781 HKD
€2,644 EUR
View
B
Retailer 12
-
HK$22,270 HKD
£2,235 GBP
View
Most Expensive
Wholesale Diamonds Direct
570928002 · Oct 23
HK$28,803 HKD
$3,671 USD
View
Price last confirmed 9 days ago
12 more retailers have this diamond
Prices start from HK$15,623 HKDSave up to HK$6,646 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 Round
HK$15,623 HKD