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Round|Natural|GIA

1.40ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2558103659

Certificate GIA 2558103659

Diamond specifications and retailer prices

From HK$12,952 HKD
As of November 4, 2026
Save HK$23,873 HKD (65%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$38,316 HKD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558103659. Listed at 14 retailers as of November 4, 2026, with a 184% 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

1.40
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558103659
Dimensions7.12 × 7.06 × 4.45 mm
L/W Ratio1.01
Top View
7.12 mm7.06 mm1.40 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558103659
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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 4
Current: HK$36,825 HKD|Low: HK$12,850 HKD|High: HK$38,316 HKD|Avg: HK$20,278 HKD|-3.9%
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
November 6, 2026
Retailer 10HK$12,952 HKD
Retailer 12HK$14,317 HKD
Retailer 8HK$16,263 HKD
Retailer 2HK$17,322 HKD
Retailer 3HK$17,691 HKD
Retailer 13HK$17,840 HKD
Retailer 11HK$18,326 HKD
Retailer 4HK$18,907 HKD
Retailer 7HK$19,354 HKD
Retailer 5HK$21,496 HKD
Retailer 6HK$21,496 HKD
Retailer 9HK$26,289 HKD
NZ JewellersHK$36,825 HKD

39 data points across 13 retailers

14 retailersHK$12,952 HKD to HK$36,825 HKD

A
Cheapest Retailer
-
HK$12,952 HKD
Retailer 2
-
HK$14,317 HKD
View
Price last confirmed 16 days ago
A
Retailer 3
-
HK$16,263 HKD
View
Final sale: no returns
B+
Retailer 4
-
HK$17,322 HKD
View
B+
Retailer 5
-
HK$17,691 HKD
View
B+
Retailer 6
-
HK$17,840 HKD
View
B+
Retailer 7
-
HK$18,240 HKD
View
B+
Retailer 8
-
HK$18,326 HKD
View
B+
Retailer 9
-
HK$18,907 HKD
View
B+
Retailer 10
-
HK$19,354 HKD
View
B
Retailer 11
-
HK$21,496 HKD
View
B
Retailer 12
-
HK$26,289 HKD
View
B
Retailer 13
-
HK$36,825 HKD
View
Most Expensive
NZ Jewellers
24342ae1-9916-4907-a630-cfa04c6aec93 · Sep 25
HK$38,316 HKD
$4,884 USD
View
Price last confirmed 41 days ago
13 more retailers have this diamond
Prices start from HK$12,952 HKDSave up to HK$23,873 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
1.40ct Round
HK$12,952 HKD