Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1533036143

Certificate GIA 1533036143

Diamond specifications and retailer prices

From HK$33,846 HKD
$4,314 USD
As of October 30, 2026
Save HK$34,387 HKD (50%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$71,647 HKD at NZ Jewellers · As of September 26, 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 1533036143. Listed at 28 retailers as of October 30, 2026, with a 102% 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1533036143
Dimensions7.32 × 7.37 × 4.56 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Knot, Feather, Natural
Top View
7.32 mm7.37 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533036143
Side View
Table 59.0%Crown 33.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 62.0%

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: Oct 30
Current: HK$48,258 HKD|Low: HK$33,846 HKD|High: HK$69,051 HKD|Avg: HK$45,973 HKD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 12HK$33,846 HKD
Retailer 13HK$35,823 HKD
Retailer 10HK$36,522 HKD
Retailer 11HK$38,813 HKD
Retailer 3HK$41,080 HKD
Retailer 8HK$41,524 HKD
Retailer 4HK$43,412 HKD
Retailer 2HK$46,931 HKD
Retailer 5HK$47,270 HKD
Retailer 1HK$48,258 HKD
Retailer 6HK$51,169 HKD
Retailer 9HK$52,658 HKD
Retailer 7HK$68,234 HKD

29 data points across 13 retailers

28 retailersHK$33,846 HKD to HK$68,234 HKD

B+
Cheapest Retailer
-
HK$33,846 HKD
$4,314 USD
B+
Retailer 2
-
HK$35,823 HKD
$4,566 USD
View
Final sale: no returns
B+
Retailer 3
-
HK$36,522 HKD
$4,655 USD
View
B+
Retailer 4
-
HK$38,462 HKD
$4,902 USD
View
Retailer 5
-
HK$38,813 HKD
$4,947 USD
View
Price last confirmed 45 days ago
B+
Retailer 6
-
HK$38,813 HKD
$4,947 USD
View
Retailer 7
-
HK$38,813 HKD
$4,947 USD
View
Price last confirmed 31 days ago
Retailer 8
-
HK$38,813 HKD
$4,947 USD
View
Price last confirmed 33 days ago
B
Retailer 9
-
HK$41,080 HKD
$5,236 USD
View
Retailer 10
-
HK$41,080 HKD
$5,236 USD
View
Price last confirmed 27 days ago
B+
Retailer 11
-
HK$41,524 HKD
£4,167 GBP
View
B
Retailer 12
-
HK$41,818 HKD
$5,330 USD
View
B
Retailer 13
-
HK$41,818 HKD
$5,330 USD
View
B
Retailer 14
-
HK$43,230 HKD
$5,510 USD
View
Retailer 15
-
HK$43,412 HKD
A$8,513 AUD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
HK$43,984 HKD
$5,606 USD
View
Retailer 17
-
HK$44,783 HKD
$5,708 USD
View
Price last confirmed 40 days ago
Retailer 18
-
HK$44,783 HKD
$5,708 USD
View
Price last confirmed 12 days ago
Retailer 19
-
HK$44,783 HKD
$5,708 USD
View
Price last confirmed 34 days ago
B
Retailer 20
-
HK$44,783 HKD
$5,708 USD
View
B
Retailer 21
-
HK$46,931 HKD
£4,710 GBP
View
Retailer 22
-
HK$47,270 HKD
$6,025 USD
View
Price last confirmed 27 days ago
B
Retailer 23
-
HK$48,258 HKD
€5,858 EUR
View
B
Retailer 24
-
HK$51,169 HKD
£5,135 GBP
View
B
Retailer 25
-
HK$52,658 HKD
ZAR 108,428 ZAR
View
B
Retailer 26
-
HK$68,234 HKD
£6,848 GBP
View
Retailer 27
-
HK$71,647 HKD
$9,132 USD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
85863596-3e43-482f-b9f2-4c5df5b95ce2 · Sep 26
HK$71,647 HKD
$9,132 USD
View
Price last confirmed 36 days ago
27 more retailers have this diamond
Prices start from HK$33,846 HKDSave up to HK$34,387 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$33,846 HKD