CaratHunter
Plans
Round|Natural|GIA

1.21ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6491051509

Certificate GIA 6491051509

Diamond specifications and retailer prices

From HK$10,622 HKD
As of November 5, 2026
Save HK$3,187 HKD (23%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$13,809 HKD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6491051509. Listed at 2 retailers as of November 5, 2026, with prices from HK$10,622 to HK$13,809, a HK$3,187 spread on the same certified stone. GemTrove lists it at HK$13,809. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6491051509
Dimensions6.81 × 6.76 × 4.24 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
6.81 mm6.76 mm1.21 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6491051509
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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: Nov 5
Current: HK$13,809 HKD|Low: HK$10,622 HKD|High: HK$13,809 HKD|Avg: HK$12,351 HKD
GemTrove
Retailer 2
October 18, 2026
Retailer 2HK$10,622 HKD
GemTroveHK$13,809 HKD

2 data points across 2 retailers

2 retailersHK$10,622 HKD to HK$13,809 HKD

A
Cheapest Retailer
-
HK$10,622 HKD
Most Expensive
B+
GemTrove
GT-N-01364458-98 · Nov 6
HK$13,809 HKD
A$2,708 AUD
View
1 more retailer has this diamond
Prices start from HK$10,622 HKDSave up to HK$3,187 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$10,622 HKD