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Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6501583878

Certificate GIA 6501583878

Diamond specifications and retailer prices

From HK$45,780 HKD
$5,835 USD
As of November 1, 2026
Save HK$51,821 HKD (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$97,601 HKD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6501583878. Listed at 18 retailers as of October 30, 2026, with prices from HK$45,780 to HK$97,601, a HK$51,821 spread on the same certified stone. NZ Jewellers lists it at HK$97,601. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6501583878
Dimensions7.35 × 7.30 × 4.60 mm
L/W Ratio1.01
Top View
7.35 mm7.30 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6501583878
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

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$54,650 HKD|Low: HK$45,780 HKD|High: HK$82,303 HKD|Avg: HK$59,306 HKD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9HK$45,780 HKD
Retailer 11HK$46,109 HKD
Retailer 10HK$49,036 HKD
Retailer 2HK$53,680 HKD
Retailer 1HK$54,650 HKD
Retailer 3HK$55,956 HKD
Retailer 8HK$56,639 HKD
Retailer 6HK$63,482 HKD
Retailer 4HK$69,702 HKD
Retailer 7HK$71,698 HKD
Retailer 5HK$81,326 HKD

36 data points across 11 retailers

18 retailersHK$45,780 HKD to HK$97,601 HKD

B+
Cheapest Retailer
-
HK$45,780 HKD
$5,835 USD
B+
Retailer 2
-
HK$46,109 HKD
$5,877 USD
View
B
Retailer 3
-
HK$48,800 HKD
$6,220 USD
View
B
Retailer 4
-
HK$49,036 HKD
$6,250 USD
View
B
Retailer 5
-
HK$52,016 HKD
$6,630 USD
View
B
Retailer 6
-
HK$52,864 HKD
$6,738 USD
View
B
Retailer 7
-
HK$53,680 HKD
$6,842 USD
View
B
Retailer 8
-
HK$54,650 HKD
£5,485 GBP
View
B
Retailer 9
-
HK$55,956 HKD
$7,132 USD
View
Retailer 10
-
HK$56,639 HKD
A$11,106 AUD
View
Price last confirmed 11 days ago
Retailer 11
-
HK$61,000 HKD
$7,775 USD
View
Price last confirmed 56 days ago
B
Retailer 12
-
HK$61,000 HKD
$7,775 USD
View
B
Retailer 13
-
HK$63,482 HKD
€7,706 EUR
View
Retailer 14
-
HK$64,303 HKD
$8,196 USD
View
Price last confirmed 9 days ago
B
Retailer 15
-
HK$69,702 HKD
£6,995 GBP
View
B
Retailer 16
-
HK$71,698 HKD
ZAR 147,633 ZAR
View
B
Retailer 17
-
HK$81,326 HKD
£8,162 GBP
View
Most Expensive
B
NZ Jewellers
f4d4f422-75b9-49b3-bb55-82b45c3d718f · Oct 30
HK$97,601 HKD
$12,440 USD
View
17 more retailers have this diamond
Prices start from HK$45,780 HKDSave up to HK$51,821 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$45,780 HKD