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Round|Natural|GIA

1.31ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 7502345420

Certificate GIA 7502345420

Diamond specifications and retailer prices

From HK$13,007 HKD
As of November 5, 2026
Save HK$21,810 HKD (63%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$34,817 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.31ct natural round diamond

This 1.31ct 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 7502345420. Listed at 11 retailers as of November 5, 2026, with prices from HK$13,007 to HK$34,817, a HK$21,810 spread on the same certified stone. NZ Jewellers lists it at HK$34,817. 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

1.31
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 7502345420
Dimensions6.94 × 6.99 × 4.34 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.94 mm6.99 mm1.31 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7502345420
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°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 5
Current: HK$34,817 HKD|Low: HK$13,007 HKD|High: HK$35,460 HKD|Avg: HK$17,794 HKD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 10HK$13,007 HKD
Retailer 4HK$13,305 HKD
Retailer 5HK$14,278 HKD
Retailer 9HK$14,278 HKD
Retailer 7HK$14,710 HKD
Retailer 6HK$14,937 HKD
Retailer 8HK$15,345 HKD
Retailer 2HK$17,416 HKD
Retailer 11HK$19,519 HKD
Retailer 3HK$20,445 HKD
Retailer 12HK$23,951 HKD
NZ JewellersHK$34,817 HKD

15 data points across 12 retailers

11 retailersHK$13,007 HKD to HK$34,817 HKD

A
Cheapest Retailer
-
HK$13,007 HKD
A
Retailer 2
-
HK$14,278 HKD
View
Retailer 3
-
HK$14,278 HKD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$14,537 HKD
View
Price last confirmed 60 days ago
A
Retailer 5
-
HK$14,710 HKD
View
B+
Retailer 6
-
HK$14,937 HKD
View
B+
Retailer 7
-
HK$15,345 HKD
View
Retailer 8
-
HK$16,467 HKD
View
Price last confirmed 68 days ago
B+
Retailer 9
-
HK$17,416 HKD
View
Retailer 10
-
HK$34,817 HKD
View
Price last confirmed 66 days ago
Most Expensive
C
NZ Jewellers
e160ed7e-f912-4ae8-aaa7-d6b85ca2b835 · Nov 5
HK$34,817 HKD
$4,438 USD
View
10 more retailers have this diamond
Prices start from HK$13,007 HKDSave up to HK$21,810 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
1.31ct Round
HK$13,007 HKD