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Marquise|Natural|GIA

1.21ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1545905349

Certificate GIA 1545905349

Diamond specifications and retailer prices

From HK$33,818 HKD
As of November 6, 2026
Save HK$13,049 HKD (28%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$46,868 HKD at Jared · As of November 4, 2026
View at Jared

About this 1.21ct natural marquise diamond

This 1.21ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545905349. Listed at 7 retailers as of November 4, 2026, with prices from HK$33,818 to HK$46,868, a HK$13,049 spread on the same certified stone. Jared lists it at HK$46,868. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1545905349
Dimensions11.29 × 5.62 × 3.33 mm
L/W Ratio2.01
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
11.29 mm5.62 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1545905349
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.4%

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$46,868 HKD|Low: HK$29,994 HKD|High: HK$49,266 HKD|Avg: HK$42,284 HKD|-2.0%
Jared
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
October 26, 2026
Retailer 8HK$29,994 HKD
Retailer 10HK$31,122 HKD
Retailer 14HK$33,818 HKD
Retailer 15HK$35,621 HKD
Retailer 11HK$35,762 HKD
Retailer 6HK$40,990 HKD
Retailer 18HK$40,990 HKD
Retailer 12HK$42,541 HKD
Retailer 5HK$43,325 HKD
Retailer 2HK$45,379 HKD
Retailer 13HK$45,379 HKD
Retailer 16HK$45,402 HKD
JaredHK$46,868 HKD
Retailer 7HK$47,103 HKD
Retailer 9HK$47,706 HKD
Retailer 4HK$47,730 HKD
Retailer 17HK$48,647 HKD
Retailer 3HK$49,266 HKD

10 data points across 18 retailers

7 retailersHK$33,818 HKD to HK$46,868 HKD

B+
Cheapest Retailer
-
HK$33,818 HKD
B+
Retailer 2
-
HK$35,621 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$35,762 HKD
View
B
Retailer 4
-
HK$42,541 HKD
View
B
Retailer 5
-
HK$45,379 HKD
View
B
Retailer 6
-
HK$45,379 HKD
View
Most Expensive
B
Jared
159442496 · Nov 4
HK$46,868 HKD
$5,980 USD
View
6 more retailers have this diamond
Prices start from HK$33,818 HKDSave up to HK$13,049 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$33,818 HKD