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Marquise|Natural|GIA

1.51ct J SI2 Marquise Natural Diamond

VG • J/SI2 • GIA 6542765247

Certificate GIA 6542765247

Diamond specifications and retailer prices

From $6,251 AUD
$4,381 USD
As of November 1, 2026
Save $2,767 AUD (31%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,245 AUD at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6542765247. Listed at 13 retailers as of November 1, 2026, with a 44% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle40.24°
Pavilion angle39.77°
OriginNatural
Grading LabGIA
CertificateGIA 6542765247
Dimensions11.00 × 5.94 × 3.85 mm
L/W Ratio1.85
Top View
11.00 mm5.94 mm1.51 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6542765247
Side View
Table 59.0%Crown 40.24°Girdle: MED-THKPavilion 39.77°Culet: NoneDepth 64.8%

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 1
Current: $8,733 AUD|Low: $6,251 AUD|High: $12,848 AUD|Avg: $8,382 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 2, 2026
Retailer 12$6,251 AUD
Retailer 2$6,947 AUD
Retailer 7$7,206 AUD
Retailer 4$7,593 AUD
Retailer 11$7,595 AUD
Retailer 9$7,942 AUD
Retailer 8$8,179 AUD
Retailer 3$8,623 AUD
Retailer 1$8,733 AUD
Retailer 10$8,733 AUD
Retailer 6$8,775 AUD
Retailer 5$9,018 AUD
Wholesale Diamonds Direct$12,245 AUD

37 data points across 13 retailers

13 retailers$6,251 AUD to $9,018 AUD

A
Cheapest Retailer
-
$6,251 AUD
$4,381 USD
B+
Retailer 2
-
$6,947 AUD
SGD 6,579 SGD
View
B+
Retailer 3
-
$7,206 AUD
$5,050 USD
View
B+
Retailer 4
-
$7,595 AUD
SGD 7,193 SGD
View
B+
Retailer 5
-
$7,942 AUD
$5,566 USD
View
B+
Retailer 6
-
$8,179 AUD
$5,732 USD
View
B+
Retailer 7
-
$8,356 AUD
$5,856 USD
View
B
Retailer 8
-
$8,623 AUD
CA$8,393 CAD
View
B+
Retailer 9
-
$8,733 AUD
$6,120 USD
View
B+
Retailer 10
-
$8,733 AUD
$6,120 USD
View
B+
Retailer 11
-
$8,775 AUD
$6,150 USD
View
B
Retailer 12
-
$9,018 AUD
$6,320 USD
View
Most Expensive
Wholesale Diamonds Direct
613407015 · Oct 27
$12,245 AUD
$8,582 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $6,251 AUDSave up to $2,767 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
1.51ct Marquise
$6,251 AUD