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Marquise|Natural|GIA

1.22ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3545256921

Certificate GIA 3545256921

Diamond specifications and retailer prices

From HK$46,914 HKD
$5,980 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: HK$46,914 HKD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.22ct natural marquise diamond

This 1.22ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545256921. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.22
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.94°
OriginNatural
Grading LabGIA
CertificateGIA 3545256921
Dimensions10.74 × 5.63 × 3.54 mm
L/W Ratio1.91
Top View
10.74 mm5.63 mm1.22 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545256921
Side View
Table 61.0%Crown 35.94°Girdle: MED-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: HK$46,914 HKD|Low: HK$46,914 HKD|High: HK$57,882 HKD|Avg: HK$55,958 HKD|-12.7%
Brilliant Earth
Retailer 2
Retailer 3
March 5, 2026
Brilliant EarthHK$46,914 HKD
Retailer 2HK$53,614 HKD
Retailer 3HK$57,882 HKD

25 data points across 3 retailers

1 retailer

B
Brilliant Earth
17864022B · Nov 6
HK$46,914 HKD
$5,980 USD
View

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
1.22ct Marquise
HK$46,914 HKD