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Marquise|Natural|GIA

0.90ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 7566551110

Certificate GIA 7566551110

Diamond specifications and retailer prices

From HK$19,862 HKD
SGD 3,421 SGD
As of October 31, 2026
Save HK$17,225 HKD (46%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$37,087 HKD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

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 7566551110. Listed at 14 retailers as of October 31, 2026, with prices from HK$19,862 to HK$37,087, a HK$17,225 spread on the same certified stone. Helzberg Diamonds lists it at HK$37,087. 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
FluorescenceNone
Crown angle39.65°
Pavilion angle38.46°
OriginNatural
Grading LabGIA
CertificateGIA 7566551110
Dimensions9.55 × 5.02 × 3.06 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.55 mm5.02 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566551110
Side View
Table 60.0%Crown 39.65°Girdle: STK-VTKPavilion 38.46°Culet: NoneDepth 61.0%

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: Oct 31
Current: HK$37,087 HKD|Low: HK$21,207 HKD|High: HK$37,087 HKD|Avg: HK$26,160 HKD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 13HK$21,207 HKD
Retailer 8HK$21,223 HKD
Retailer 3HK$21,403 HKD
Retailer 12HK$21,573 HKD
Retailer 6HK$23,283 HKD
Retailer 5HK$23,485 HKD
Retailer 11HK$25,216 HKD
Retailer 7HK$25,958 HKD
Retailer 4HK$26,026 HKD
Retailer 2HK$27,052 HKD
Retailer 10HK$32,881 HKD
Retailer 9HK$34,797 HKD
Helzberg DiamondsHK$37,087 HKD

24 data points across 13 retailers

14 retailersHK$19,862 HKD to HK$37,087 HKD

B+
Cheapest Retailer
-
HK$19,862 HKD
SGD 3,421 SGD
B+
Retailer 2
-
HK$21,207 HKD
$2,703 USD
View
B+
Retailer 3
-
HK$21,223 HKD
$2,705 USD
View
B+
Retailer 4
-
HK$21,403 HKD
$2,728 USD
View
B+
Retailer 5
-
HK$21,573 HKD
$2,750 USD
View
B+
Retailer 6
-
HK$23,283 HKD
£2,337 GBP
View
B+
Retailer 7
-
HK$23,485 HKD
SGD 4,045 SGD
View
B+
Retailer 8
-
HK$25,216 HKD
$3,214 USD
View
B+
Retailer 9
-
HK$25,958 HKD
€3,151 EUR
View
B+
Retailer 10
-
HK$26,026 HKD
$3,317 USD
View
B+
Retailer 11
-
HK$27,052 HKD
$3,448 USD
View
B
Retailer 12
-
HK$32,881 HKD
$4,191 USD
View
B
Retailer 13
-
HK$34,797 HKD
$4,435 USD
View
Most Expensive
B
Helzberg Diamonds
XZRNLMMLLHHHG · Oct 31
HK$37,087 HKD
$4,727 USD
View
13 more retailers have this diamond
Prices start from HK$19,862 HKDSave up to HK$17,225 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+
0.90ct Marquise
HK$19,862 HKD