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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 7542187299

Certificate GIA 7542187299

Diamond specifications and retailer prices

From $10,457 AUD
As of November 5, 2026
Save $12,045 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $22,502 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7542187299. Listed at 20 retailers as of November 5, 2026, with prices from $10,457 to $22,502, a $12,045 spread on the same certified stone. NZ Jewellers lists it at $22,502. 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

1.50
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.76°
Pavilion angle36.92°
OriginNatural
Grading LabGIA
CertificateGIA 7542187299
Dimensions11.09 × 5.89 × 3.51 mm
L/W Ratio1.88
Culet sizeNone
Top View
11.09 mm5.89 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7542187299
Side View
Table 64.0%Crown 39.76°Girdle: MED-VTKPavilion 36.92°Culet: NoneDepth 59.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $13,885 AUD|Low: $11,250 AUD|High: $18,974 AUD|Avg: $14,082 AUD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$11,250 AUD
Retailer 6$12,375 AUD
Retailer 2$12,429 AUD
Retailer 5$12,678 AUD
Retailer 1$13,885 AUD
Retailer 3$16,414 AUD
Retailer 4$18,748 AUD

45 data points across 7 retailers

20 retailers$10,457 AUD to $22,502 AUD

B
Cheapest Retailer
-
$10,457 AUD
B
Retailer 2
-
$10,534 AUD
View
B
Retailer 3
-
$11,044 AUD
View
B
Retailer 4
-
$11,214 AUD
View
Retailer 5
-
$11,250 AUD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$11,345 AUD
View
B
Retailer 7
-
$12,189 AUD
View
B
Retailer 8
-
$12,375 AUD
View
B
Retailer 9
-
$12,429 AUD
View
Retailer 10
-
$12,678 AUD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$12,915 AUD
View
B
Retailer 12
-
$13,375 AUD
View
B
Retailer 13
-
$13,375 AUD
View
C
Retailer 14
-
$13,812 AUD
View
B
Retailer 15
-
$13,885 AUD
View
C
Retailer 16
-
$14,064 AUD
View
Retailer 17
-
$14,815 AUD
View
Price last confirmed 14 days ago
C
Retailer 18
-
$16,414 AUD
View
C
Retailer 19
-
$18,748 AUD
View
Most Expensive
C
NZ Jewellers
74e38fa7-dc3b-41f6-8000-3e83fe56b6c2 · Nov 5
$22,502 AUD
$15,461 USD
View
19 more retailers have this diamond
Prices start from $10,457 AUDSave up to $12,045 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.

B
1.50ct Marquise
$10,457 AUD