CaratHunter
Plans
Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 6204620321

Certificate GIA 6204620321

Diamond specifications and retailer prices

From HK$39,229 HKD
$5,000 USD
As of October 31, 2026
Save HK$4,762 HKD (11%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$65,115 HKD at MOH London · As of October 29, 2026
View at MOH London

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 very-good cut grade and certified by GIA 6204620321. Listed at 8 retailers as of October 29, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6204620321
Dimensions6.91 × 6.87 × 4.21 mm
L/W Ratio1.01
Top View
6.91 mm6.87 mm1.21 ctJ / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateGIA 6204620321
Side View
Table 57.0%Crown 33.5°Girdle: VTN-MEDPavilion 41.2°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$65,115 HKD|Low: HK$31,814 HKD|High: HK$65,543 HKD|Avg: HK$44,885 HKD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 4HK$31,814 HKD
Retailer 5HK$39,229 HKD
Retailer 2HK$40,383 HKD
Retailer 3HK$43,991 HKD
MOH LondonHK$65,115 HKD

37 data points across 5 retailers

8 retailersHK$39,229 HKD to HK$43,991 HKD

Retailer 1
-
HK$31,814 HKD
$4,055 USD
Price last confirmed 10 days ago
C
Retailer 2
-
HK$39,229 HKD
$5,000 USD
View
B
Retailer 3
-
HK$40,383 HKD
£4,053 GBP
View
C
Retailer 4
-
HK$41,739 HKD
$5,320 USD
View
C
Retailer 5
-
HK$41,739 HKD
$5,320 USD
View
C
Retailer 6
-
HK$43,151 HKD
$5,500 USD
View
B
Retailer 7
-
HK$43,991 HKD
€5,340 EUR
View
Most Expensive
MOH London
CFF297CD8 · Oct 29
HK$65,115 HKD
£6,535 GBP
View
Price under review
7 more retailers have this diamond
Prices start from HK$39,229 HKDSave up to HK$4,762 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 Round
HK$39,229 HKD