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Round|Natural|GIA

1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 3475588059

Certificate GIA 3475588059

Diamond specifications and retailer prices

From HK$24,038 HKD
As of November 6, 2026
Save HK$7,414 HKD (24%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$47,181 HKD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3475588059. Listed at 10 retailers as of November 5, 2026, with a 31% 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

1.51
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 3475588059
Dimensions7.30 × 7.33 × 4.57 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.30 mm7.33 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3475588059
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$31,451 HKD|Low: HK$20,923 HKD|High: HK$32,220 HKD|Avg: HK$26,889 HKD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 7HK$20,923 HKD
Retailer 2HK$24,038 HKD
Retailer 4HK$24,406 HKD
Retailer 3HK$27,082 HKD
Retailer 6HK$28,211 HKD
Retailer 1HK$31,451 HKD
Retailer 5HK$32,220 HKD

20 data points across 7 retailers

10 retailersHK$24,038 HKD to HK$31,451 HKD

B+
Cheapest Retailer
-
HK$24,038 HKD
B+
Retailer 2
-
HK$24,406 HKD
View
Retailer 3
-
HK$27,082 HKD
View
Price last confirmed 8 days ago
Retailer 4
-
HK$27,082 HKD
View
Price last confirmed 29 days ago
B
Retailer 5
-
HK$28,125 HKD
View
Retailer 6
-
HK$28,125 HKD
View
Price last confirmed 38 days ago
B
Retailer 7
-
HK$28,211 HKD
View
Retailer 8
-
HK$31,247 HKD
View
Price last confirmed 28 days ago
B
Retailer 9
-
HK$31,451 HKD
View
Most Expensive
NZ Jewellers
7cdb8c93-2266-431c-8539-1193759f87bd · Sep 28
HK$47,181 HKD
$6,014 USD
View
Price last confirmed 39 days ago
9 more retailers have this diamond
Prices start from HK$24,038 HKDSave up to HK$7,414 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.

B+
1.51ct Round
HK$24,038 HKD