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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2557316373

Certificate GIA 2557316373

Diamond specifications and retailer prices

From HK$20,525 HKD
As of November 3, 2026
Save HK$6,086 HKD (23%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$26,611 HKD at GemTrove · As of November 4, 2026
View at GemTrove

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded G 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 2557316373. Listed at 8 retailers as of November 3, 2026, with prices from HK$20,525 to HK$26,611, a HK$6,086 spread on the same certified stone. GemTrove lists it at HK$26,611. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557316373
Dimensions9.92 × 5.22 × 3.25 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.92 mm5.22 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557316373
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 62.3%

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: Nov 3
Current: HK$23,334 HKD|Low: HK$19,215 HKD|High: HK$27,163 HKD|Avg: HK$23,365 HKD|-5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 4, 2026
Retailer 2HK$20,525 HKD
Retailer 3HK$22,016 HKD
Retailer 4HK$22,243 HKD
Retailer 1HK$23,334 HKD
Retailer 6HK$25,201 HKD
Retailer 5HK$26,119 HKD

46 data points across 6 retailers

8 retailersHK$20,525 HKD to HK$26,611 HKD

A
Cheapest Retailer
-
HK$20,525 HKD
A
Retailer 2
-
HK$22,016 HKD
View
B+
Retailer 3
-
HK$22,243 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$23,334 HKD
View
B+
Retailer 5
-
HK$25,201 HKD
View
B+
Retailer 6
-
HK$26,080 HKD
View
B+
Retailer 7
-
HK$26,119 HKD
View
Most Expensive
B+
GemTrove
GT-N-01273322-98 · Nov 4
HK$26,611 HKD
A$5,218 AUD
View
7 more retailers have this diamond
Prices start from HK$20,525 HKDSave up to HK$6,086 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$20,525 HKD