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Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6551696109

Certificate GIA 6551696109

Diamond specifications and retailer prices

From $5,212 AUD
HK$28,600 HKD
As of October 31, 2026
Save $6,499 AUD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,711 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct 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 6551696109. Listed at 22 retailers as of October 30, 2026, with prices from $5,212 to $11,711, a $6,499 spread on the same certified stone. NZ Jewellers lists it at $11,711. 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

1.50
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551696109
Dimensions7.26 × 7.21 × 4.54 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.26 mm7.21 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551696109
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: 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: Oct 31
Current: $11,711 AUD|Low: $5,157 AUD|High: $11,711 AUD|Avg: $7,789 AUD
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
Retailer 20
Retailer 21
Retailer 22
November 1, 2026
Retailer 20$5,212 AUD
Retailer 19$5,314 AUD
Retailer 11$5,861 AUD
Retailer 8$6,203 AUD
Retailer 21$6,342 AUD
Retailer 7$6,417 AUD
Retailer 10$6,620 AUD
Retailer 17$6,641 AUD
Retailer 3$6,721 AUD
Retailer 4$6,721 AUD
Retailer 5$6,721 AUD
Retailer 22$6,935 AUD
Retailer 16$7,448 AUD
Retailer 6$7,503 AUD
Retailer 9$7,756 AUD
Retailer 2$8,028 AUD
Retailer 15$8,112 AUD
Retailer 18$8,262 AUD
Retailer 14$9,880 AUD
Retailer 12$10,157 AUD
Retailer 13$10,705 AUD
NZ Jewellers$11,711 AUD

20 data points across 22 retailers

22 retailers$5,212 AUD to $11,711 AUD

A
Cheapest Retailer
-
$5,212 AUD
HK$28,600 HKD
A
Retailer 2
-
$5,314 AUD
₹355,518 INR
View
B+
Retailer 3
-
$5,861 AUD
$4,117 USD
View
B+
Retailer 4
-
$6,203 AUD
$4,357 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,342 AUD
$4,455 USD
View
B+
Retailer 6
-
$6,417 AUD
SGD 6,091 SGD
View
B+
Retailer 7
-
$6,620 AUD
SGD 6,284 SGD
View
B+
Retailer 8
-
$6,641 AUD
£3,673 GBP
View
B+
Retailer 9
-
$6,721 AUD
$4,721 USD
View
B+
Retailer 10
-
$6,721 AUD
$4,721 USD
View
B+
Retailer 11
-
$6,721 AUD
$4,721 USD
View
B+
Retailer 12
-
$6,935 AUD
$4,872 USD
View
Retailer 13
-
$7,225 AUD
View
Price last confirmed 22 days ago
B+
Retailer 14
-
$7,448 AUD
€4,983 EUR
View
B
Retailer 15
-
$7,503 AUD
£4,150 GBP
View
B
Retailer 16
-
$7,756 AUD
$5,448 USD
View
B+
Retailer 17
-
$8,028 AUD
£4,441 GBP
View
B+
Retailer 18
-
$8,262 AUD
ZAR 93,757 ZAR
View
B
Retailer 19
-
$9,880 AUD
$6,940 USD
View
B
Retailer 20
-
$10,157 AUD
$7,135 USD
View
B
Retailer 21
-
$10,705 AUD
£5,921 GBP
View
Most Expensive
B
NZ Jewellers
f38c7e27-58e3-4b8b-a85d-8d89340a845f · Oct 30
$11,711 AUD
$8,226 USD
View
21 more retailers have this diamond
Prices start from $5,212 AUDSave up to $6,499 AUD

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
1.50ct Round
$5,212 AUD