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Round|Natural|GIA

1.55ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2516731507

Certificate GIA 2516731507

Diamond specifications and retailer prices

From HK$18,075 HKD
As of November 6, 2026
Save HK$18,642 HKD (51%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$36,717 HKD at Wholesale Diamonds Direct · As of November 3, 2026
View at Wholesale Diamonds Direct

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2516731507. Listed at 8 retailers as of November 3, 2026, with prices from HK$18,075 to HK$36,717, a HK$18,642 spread on the same certified stone. Wholesale Diamonds Direct lists it at HK$36,717. 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

1.55
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2516731507
Dimensions7.37 × 7.34 × 4.58 mm
L/W Ratio1.00
Top View
7.37 mm7.34 mm1.55 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2516731507
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: 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 6
Current: HK$18,075 HKD|Low: HK$17,871 HKD|High: HK$39,526 HKD|Avg: HK$25,396 HKD|-10.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 4, 2026
Retailer 1HK$18,075 HKD
Retailer 2HK$20,099 HKD
Retailer 5HK$20,711 HKD
Retailer 6HK$21,378 HKD
Retailer 3HK$22,233 HKD
Retailer 8HK$24,618 HKD
Retailer 7HK$28,070 HKD
Retailer 4HK$29,537 HKD
Wholesale Diamonds DirectHK$36,717 HKD

23 data points across 9 retailers

8 retailersHK$18,075 HKD to HK$36,717 HKD

A
Cheapest Retailer
-
HK$18,075 HKD
A
Retailer 2
-
HK$20,099 HKD
View
Final sale: no returns
B+
Retailer 3
-
HK$20,711 HKD
View
A
Retailer 4
-
HK$21,378 HKD
View
A
Retailer 5
-
HK$22,233 HKD
View
B+
Retailer 6
-
HK$24,618 HKD
View
B
Retailer 7
-
HK$29,537 HKD
View
Most Expensive
B
Wholesale Diamonds Direct
625924145 · Nov 3
HK$36,717 HKD
$4,680 USD
View
7 more retailers have this diamond
Prices start from HK$18,075 HKDSave up to HK$18,642 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
1.55ct Round
HK$18,075 HKD