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Round|Natural|GIA

1.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1537184144

Certificate GIA 1537184144

Diamond specifications and retailer prices

From HK$8,630 HKD
As of November 6, 2026
Save HK$19,888 HKD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$28,517 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1537184144. Listed at 12 retailers as of November 5, 2026, with prices from HK$8,630 to HK$28,517, a HK$19,888 spread on the same certified stone. NZ Jewellers lists it at HK$28,517. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1537184144
Dimensions6.75 × 6.79 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.75 mm6.79 mm1.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1537184144
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°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 6
Current: HK$8,708 HKD|Low: HK$8,630 HKD|High: HK$16,263 HKD|Avg: HK$11,872 HKD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8HK$8,630 HKD
Retailer 1HK$8,708 HKD
Retailer 6HK$10,842 HKD
Retailer 2HK$11,493 HKD
Retailer 7HK$12,231 HKD
Retailer 5HK$12,435 HKD
Retailer 3HK$14,263 HKD
Retailer 4HK$16,161 HKD

41 data points across 8 retailers

12 retailersHK$8,630 HKD to HK$28,517 HKD

A
Cheapest Retailer
-
HK$8,630 HKD
A
Retailer 2
-
HK$8,708 HKD
View
B+
Retailer 3
-
HK$10,842 HKD
View
A
Retailer 4
-
HK$11,493 HKD
View
B+
Retailer 5
-
HK$11,689 HKD
View
Retailer 6
-
HK$11,689 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$12,231 HKD
View
B+
Retailer 8
-
HK$12,435 HKD
View
B+
Retailer 9
-
HK$13,486 HKD
View
B+
Retailer 10
-
HK$14,263 HKD
View
B+
Retailer 11
-
HK$16,161 HKD
View
Most Expensive
C
NZ Jewellers
b749ebb2-c399-4b76-b0fb-19c871a8799a · Nov 5
HK$28,517 HKD
$3,635 USD
View
11 more retailers have this diamond
Prices start from HK$8,630 HKDSave up to HK$19,888 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$8,630 HKD