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Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6555735876

Certificate GIA 6555735876

Diamond specifications and retailer prices

From HK$48,206 HKD
As of November 1, 2026
Save HK$61,349 HKD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$109,555 HKD at NZ Jewellers · As of November 2, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555735876. Listed at 20 retailers as of November 1, 2026, with prices from HK$48,206 to HK$109,555, a HK$61,349 spread on the same certified stone. NZ Jewellers lists it at HK$109,555. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555735876
Dimensions7.25 × 7.29 × 4.55 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.25 mm7.29 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555735876
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: HK$109,555 HKD|Low: HK$47,805 HKD|High: HK$109,555 HKD|Avg: HK$67,158 HKD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 16HK$48,206 HKD
Retailer 7HK$51,753 HKD
Retailer 9HK$54,766 HKD
Retailer 5HK$54,781 HKD
Retailer 18HK$54,805 HKD
Retailer 3HK$59,340 HKD
Retailer 8HK$60,258 HKD
Retailer 13HK$61,411 HKD
Retailer 17HK$62,816 HKD
Retailer 12HK$65,199 HKD
Retailer 4HK$65,436 HKD
Retailer 10HK$65,436 HKD
Retailer 19HK$67,633 HKD
Retailer 6HK$68,473 HKD
Retailer 11HK$72,153 HKD
Retailer 2HK$72,585 HKD
Retailer 15HK$80,472 HKD
Retailer 14HK$91,285 HKD
NZ JewellersHK$109,555 HKD

35 data points across 19 retailers

20 retailersHK$48,206 HKD to HK$109,555 HKD

B+
Cheapest Retailer
-
HK$48,206 HKD
B+
Retailer 2
-
HK$49,214 HKD
A$9,650 AUD
View
B+
Retailer 3
-
HK$51,753 HKD
$6,596 USD
View
B+
Retailer 4
-
HK$54,766 HKD
$6,980 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$54,781 HKD
$6,982 USD
View
B+
Retailer 6
-
HK$54,805 HKD
$6,985 USD
View
B
Retailer 7
-
HK$59,340 HKD
$7,563 USD
View
B+
Retailer 8
-
HK$60,258 HKD
$7,680 USD
View
B+
Retailer 9
-
HK$61,411 HKD
£6,163 GBP
View
Retailer 10
-
HK$62,816 HKD
A$12,317 AUD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
HK$65,199 HKD
€7,914 EUR
View
B
Retailer 12
-
HK$65,436 HKD
$8,340 USD
View
B
Retailer 13
-
HK$65,436 HKD
$8,340 USD
View
B
Retailer 14
-
HK$67,633 HKD
$8,620 USD
View
B
Retailer 15
-
HK$68,473 HKD
$8,727 USD
View
Retailer 16
-
HK$72,153 HKD
$9,196 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
HK$72,585 HKD
£7,284 GBP
View
B
Retailer 18
-
HK$80,472 HKD
ZAR 165,691 ZAR
View
B
Retailer 19
-
HK$91,285 HKD
£9,161 GBP
View
Most Expensive
B
NZ Jewellers
709b4404-daec-4c0b-b654-fb474c7a1d60 · Nov 2
HK$109,555 HKD
$13,963 USD
View
19 more retailers have this diamond
Prices start from HK$48,206 HKDSave up to HK$61,349 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$48,206 HKD