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Marquise|Natural|GIA

1.00ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 3555958830

Certificate GIA 3555958830

Diamond specifications and retailer prices

From HK$15,996 HKD
SGD 2,755 SGD
As of October 31, 2026
Save HK$15,122 HKD (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$31,118 HKD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555958830. Listed at 13 retailers as of October 31, 2026, with prices from HK$15,996 to HK$31,118, a HK$15,122 spread on the same certified stone. Helzberg Diamonds lists it at HK$31,118. 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40°
Pavilion angle40.33°
OriginNatural
Grading LabGIA
CertificateGIA 3555958830
Dimensions9.82 × 5.18 × 3.32 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.82 mm5.18 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555958830
Side View
Table 59.0%Crown 40°Girdle: STK-THKPavilion 40.33°Culet: NoneDepth 64.0%

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 31
Current: HK$31,118 HKD|Low: HK$15,996 HKD|High: HK$32,436 HKD|Avg: HK$21,084 HKD|-4.1%
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 10HK$15,996 HKD
Retailer 9HK$17,222 HKD
Retailer 11HK$17,372 HKD
Retailer 7HK$17,536 HKD
Retailer 8HK$17,818 HKD
Retailer 2HK$18,783 HKD
Retailer 5HK$18,911 HKD
Retailer 12HK$20,533 HKD
Retailer 3HK$20,557 HKD
Retailer 4HK$21,645 HKD
Retailer 6HK$22,359 HKD
Retailer 13HK$28,504 HKD
Helzberg DiamondsHK$31,118 HKD

39 data points across 13 retailers

13 retailersHK$15,996 HKD to HK$31,118 HKD

A
Cheapest Retailer
-
HK$15,996 HKD
SGD 2,755 SGD
A
Retailer 2
-
HK$17,222 HKD
$2,195 USD
View
A
Retailer 3
-
HK$17,372 HKD
$2,214 USD
View
A
Retailer 4
-
HK$17,536 HKD
$2,235 USD
View
A
Retailer 5
-
HK$17,818 HKD
$2,271 USD
View
A
Retailer 6
-
HK$18,783 HKD
£1,885 GBP
View
A
Retailer 7
-
HK$18,911 HKD
SGD 3,257 SGD
View
A
Retailer 8
-
HK$20,533 HKD
$2,617 USD
View
A
Retailer 9
-
HK$20,557 HKD
$2,620 USD
View
A
Retailer 10
-
HK$21,645 HKD
$2,759 USD
View
A
Retailer 11
-
HK$22,359 HKD
€2,714 EUR
View
B+
Retailer 12
-
HK$28,504 HKD
$3,633 USD
View
Most Expensive
B+
Helzberg Diamonds
XZRJLLLPLOOJG · Oct 31
HK$31,118 HKD
$3,966 USD
View
12 more retailers have this diamond
Prices start from HK$15,996 HKDSave up to HK$15,122 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
1.00ct Marquise
HK$15,996 HKD