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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 5231872032

Certificate GIA 5231872032

Diamond specifications and retailer prices

From $11,745 AUD
$8,231 USD
As of November 1, 2026
Save $9,439 AUD (45%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $21,184 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231872032. Listed at 18 retailers as of October 30, 2026, with prices from $11,745 to $21,184, a $9,439 spread on the same certified stone. NZ Jewellers lists it at $21,184. 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
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.66°
Pavilion angle37.75°
OriginNatural
Grading LabGIA
CertificateGIA 5231872032
Dimensions11.07 × 5.91 × 3.60 mm
L/W Ratio1.87
Top View
11.07 mm5.91 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5231872032
Side View
Table 59.0%Crown 40.66°Girdle: MED-VTKPavilion 37.75°Culet: NoneDepth 60.9%

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: $21,184 AUD|Low: $11,117 AUD|High: $21,205 AUD|Avg: $14,991 AUD|-0.1%
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
November 2, 2026
Retailer 6$11,745 AUD
Retailer 2$12,247 AUD
Retailer 4$12,711 AUD
Retailer 17$12,816 AUD
Retailer 14$13,079 AUD
Retailer 8$13,551 AUD
Retailer 5$13,770 AUD
Retailer 15$13,786 AUD
Retailer 3$13,982 AUD
Retailer 10$15,196 AUD
Retailer 12$15,196 AUD
Retailer 11$15,710 AUD
Retailer 7$15,889 AUD
Retailer 13$16,010 AUD
Retailer 9$16,730 AUD
Retailer 16$19,850 AUD
NZ Jewellers$21,184 AUD

43 data points across 17 retailers

18 retailers$11,745 AUD to $21,184 AUD

A
Cheapest Retailer
-
$11,745 AUD
$8,231 USD
A
Retailer 2
-
$12,247 AUD
$8,583 USD
View
A
Retailer 3
-
$12,711 AUD
$8,908 USD
View
A
Retailer 4
-
$12,816 AUD
$8,982 USD
View
B+
Retailer 5
-
$13,079 AUD
$9,166 USD
View
Final sale: no returns
B+
Retailer 6
-
$13,551 AUD
$9,497 USD
View
B+
Retailer 7
-
$13,770 AUD
$9,650 USD
View
A
Retailer 8
-
$13,786 AUD
£7,607 GBP
View
B+
Retailer 9
-
$13,966 AUD
View
B+
Retailer 10
-
$13,982 AUD
$9,799 USD
View
B+
Retailer 11
-
$15,196 AUD
$10,650 USD
View
B+
Retailer 12
-
$15,196 AUD
$10,650 USD
View
B+
Retailer 13
-
$15,710 AUD
$11,010 USD
View
B+
Retailer 14
-
$15,889 AUD
$11,135 USD
View
B+
Retailer 15
-
$16,010 AUD
€10,686 EUR
View
Retailer 16
-
$16,730 AUD
$11,725 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$19,850 AUD
£10,954 GBP
View
Most Expensive
B
NZ Jewellers
6013d0f1-3fb3-4cc2-8f5d-fa1f875905fa · Oct 30
$21,184 AUD
$14,846 USD
View
17 more retailers have this diamond
Prices start from $11,745 AUDSave up to $9,439 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
$11,745 AUD