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Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1557992950

Certificate GIA 1557992950

Diamond specifications and retailer prices

From HK$15,566 HKD
As of October 26, 2026
Save HK$25,507 HKD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$44,485 HKD at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-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 1557992950. Listed at 13 retailers as of October 26, 2026, with a 164% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.90
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Pavilion angle40.26°
OriginNatural
Grading LabGIA
CertificateGIA 1557992950
Dimensions10.52 × 4.78 × 3.11 mm
L/W Ratio2.20
Key to symbols
Feather
Top View
10.52 mm4.78 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1557992950
Side View
Table 57.0%CrownGirdle: STK-VTKPavilion 40.26°Culet: NoneDepth 65.0%

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: Oct 26
Current: HK$44,485 HKD|Low: HK$15,566 HKD|High: HK$46,651 HKD|Avg: HK$27,273 HKD|-4.6%
NZ Jewellers
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
October 27, 2026
Retailer 3HK$15,566 HKD
Retailer 2HK$18,891 HKD
Retailer 13HK$19,614 HKD
Retailer 4HK$21,278 HKD
Retailer 6HK$21,807 HKD
Retailer 11HK$22,093 HKD
Retailer 5HK$23,184 HKD
Retailer 10HK$25,060 HKD
Retailer 8HK$25,777 HKD
Retailer 12HK$26,526 HKD
Retailer 14HK$32,293 HKD
Retailer 9HK$37,325 HKD
Retailer 7HK$41,073 HKD
NZ JewellersHK$44,485 HKD

26 data points across 14 retailers

13 retailersHK$15,566 HKD to HK$41,073 HKD

A
Cheapest Retailer
-
HK$15,566 HKD
Retailer 2
-
HK$18,891 HKD
€2,293 EUR
View
Price last confirmed 5 days ago
B+
Retailer 3
-
HK$19,614 HKD
$2,500 USD
View
B+
Retailer 4
-
HK$21,278 HKD
$2,712 USD
View
B+
Retailer 5
-
HK$21,807 HKD
SGD 3,756 SGD
View
B+
Retailer 6
-
HK$22,093 HKD
$2,816 USD
View
B+
Retailer 7
-
HK$23,184 HKD
$2,955 USD
View
Retailer 8
-
HK$25,060 HKD
A$4,914 AUD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
HK$25,777 HKD
€3,129 EUR
View
Retailer 10
-
HK$32,293 HKD
€3,920 EUR
View
Price last confirmed 8 days ago
B
Retailer 11
-
HK$37,325 HKD
£3,746 GBP
View
B
Retailer 12
-
HK$41,073 HKD
£4,122 GBP
View
Most Expensive
NZ Jewellers
a284c0a3-a01c-45e0-8267-667b4cb799b5 · Oct 24
HK$44,485 HKD
$5,670 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from HK$15,566 HKDSave up to HK$25,507 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
0.90ct Marquise
HK$15,566 HKD