Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 2558123121

Certificate GIA 2558123121

Diamond specifications and retailer prices

From HK$39,320 HKD
As of November 6, 2026
Save HK$37,533 HKD (49%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$87,481 HKD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2558123121. Listed at 28 retailers as of November 4, 2026, with a 95% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558123121
Dimensions10.20 × 5.74 × 3.29 mm
L/W Ratio1.78
Top View
10.20 mm5.74 mm1.21 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558123121
Side View
Table 68.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 57.3%

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 6
Current: HK$47,691 HKD|Low: HK$39,320 HKD|High: HK$83,069 HKD|Avg: HK$52,536 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 9HK$39,320 HKD
Retailer 6HK$40,864 HKD
Retailer 5HK$41,327 HKD
Retailer 20HK$41,350 HKD
Retailer 4HK$41,867 HKD
Retailer 18HK$41,883 HKD
Retailer 19HK$42,965 HKD
Retailer 8HK$43,741 HKD
Retailer 2HK$44,164 HKD
Retailer 13HK$44,203 HKD
Retailer 11HK$46,727 HKD
Retailer 1HK$47,691 HKD
Retailer 3HK$48,843 HKD
Retailer 7HK$48,898 HKD
Retailer 15HK$49,673 HKD
Retailer 10HK$53,545 HKD
Retailer 12HK$53,718 HKD
Retailer 14HK$57,370 HKD
Retailer 16HK$63,820 HKD
Retailer 21HK$75,811 HKD
Retailer 17HK$76,854 HKD

43 data points across 21 retailers

28 retailersHK$39,320 HKD to HK$76,854 HKD

B+
Cheapest Retailer
-
HK$39,320 HKD
B+
Retailer 2
-
HK$40,864 HKD
View
B
Retailer 3
-
HK$41,327 HKD
View
B
Retailer 4
-
HK$41,350 HKD
View
B+
Retailer 5
-
HK$41,867 HKD
View
B
Retailer 6
-
HK$41,883 HKD
View
B
Retailer 7
-
HK$42,965 HKD
View
B+
Retailer 8
-
HK$43,741 HKD
View
Final sale: no returns
B+
Retailer 9
-
HK$44,164 HKD
View
Retailer 10
-
HK$44,203 HKD
View
Price last confirmed 31 days ago
B
Retailer 11
-
HK$46,727 HKD
View
Retailer 12
-
HK$47,385 HKD
View
Price last confirmed 22 days ago
Retailer 13
-
HK$47,385 HKD
View
Price last confirmed 20 days ago
Retailer 14
-
HK$47,385 HKD
View
Price last confirmed 22 days ago
Retailer 15
-
HK$47,691 HKD
View
B
Retailer 16
-
HK$48,843 HKD
View
Retailer 17
-
HK$48,898 HKD
View
Price last confirmed 15 days ago
B
Retailer 18
-
HK$49,673 HKD
View
B
Retailer 19
-
HK$53,545 HKD
View
B
Retailer 20
-
HK$53,718 HKD
View
B
Retailer 21
-
HK$54,086 HKD
View
Retailer 22
-
HK$54,682 HKD
View
Price last confirmed 19 days ago
Retailer 23
-
HK$57,370 HKD
View
Price last confirmed 34 days ago
Retailer 24
-
HK$61,571 HKD
View
Price last confirmed 62 days ago
B
Retailer 25
-
HK$63,820 HKD
View
B
Retailer 26
-
HK$75,811 HKD
View
B
Retailer 27
-
HK$76,854 HKD
View
Most Expensive
NZ Jewellers
c723eb07-ca9f-4d6a-9332-4fe5981fe523 · Oct 17
HK$87,481 HKD
$11,162 USD
View
Price last confirmed 20 days ago
27 more retailers have this diamond
Prices start from HK$39,320 HKDSave up to HK$37,533 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 Marquise
HK$39,320 HKD