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Round|Natural|GIA

1.51ct I VS1 Round Natural Diamond

ID • I/VS1 • GIA 307

Certificate GIA 307

Diamond specifications and retailer prices

From HK$48,868 HKD
As of November 3, 2026
Save HK$31,789 HKD (39%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$80,657 HKD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA. Listed at 7 retailers as of November 3, 2026, with prices from HK$48,868 to HK$80,657, a HK$31,789 spread on the same certified stone. Helzberg Diamonds lists it at HK$80,657. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 307
Dimensions7.26 × 7.32 × 4.58 mm
L/W Ratio1.01
Top View
7.26 mm7.32 mm1.51 ctI / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 307
Side View
Table 58.0%CrownGirdle: THN-STKPavilionCulet: 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 3
Current: HK$80,657 HKD|Low: HK$48,868 HKD|High: HK$84,234 HKD|Avg: HK$62,993 HKD|-4.2%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 5HK$48,868 HKD
Retailer 4HK$51,857 HKD
Retailer 2HK$51,990 HKD
Retailer 3HK$52,712 HKD
Retailer 7HK$57,003 HKD
Retailer 6HK$61,899 HKD
Retailer 8HK$70,638 HKD
Retailer 9HK$79,323 HKD
Helzberg DiamondsHK$80,657 HKD

31 data points across 9 retailers

7 retailersHK$48,868 HKD to HK$80,657 HKD

A
Cheapest Retailer
-
HK$48,868 HKD
A
Retailer 2
-
HK$51,857 HKD
View
A
Retailer 3
-
HK$51,990 HKD
View
A
Retailer 4
-
HK$52,712 HKD
View
Retailer 5
-
HK$57,003 HKD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
HK$61,899 HKD
View
Most Expensive
B+
Helzberg Diamonds
XZRMLMLHOHMPG · Nov 3
HK$80,657 HKD
$10,281 USD
View
6 more retailers have this diamond
Prices start from HK$48,868 HKDSave up to HK$31,789 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
1.51ct Round
HK$48,868 HKD