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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 6551654562

Certificate GIA 6551654562

Diamond specifications and retailer prices

From $9,211 AUD
As of November 5, 2026
Save $13,112 AUD (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $22,323 AUD at NZ Jewellers · As of November 5, 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 6551654562. Listed at 15 retailers as of November 5, 2026, with prices from $9,211 to $22,323, a $13,112 spread on the same certified stone. NZ Jewellers lists it at $22,323. 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
SymmetryExcellent
FluorescenceFaint
Crown angle40.38°
Pavilion angle40.3°
OriginNatural
Grading LabGIA
CertificateGIA 6551654562
Dimensions11.00 × 5.93 × 3.83 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.00 mm5.93 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551654562
Side View
Table 58.0%Crown 40.38°Girdle: THN-VTKPavilion 40.3°Culet: NoneDepth 64.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $22,323 AUD|Low: $8,798 AUD|High: $22,323 AUD|Avg: $11,113 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
November 5, 2026
Retailer 3$8,798 AUD
Retailer 7$9,211 AUD
Retailer 13$9,312 AUD
Retailer 14$9,524 AUD
Retailer 12$9,550 AUD
Retailer 10$9,763 AUD
Retailer 4$11,029 AUD
Retailer 11$11,208 AUD
Retailer 6$11,288 AUD
Retailer 9$12,174 AUD
Retailer 2$12,499 AUD
Retailer 8$13,347 AUD
Retailer 5$14,446 AUD
NZ Jewellers$22,323 AUD

38 data points across 14 retailers

15 retailers$9,211 AUD to $22,323 AUD

Retailer 1
-
$8,798 AUD
Price last confirmed 7 days ago
A
Retailer 2
-
$9,211 AUD
View
Retailer 3
-
$9,312 AUD
View
Price last confirmed 9 days ago
Retailer 4
-
$9,524 AUD
View
Price last confirmed 7 days ago
Retailer 5
-
$9,550 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$9,763 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$11,029 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
$11,208 AUD
View
Price last confirmed 9 days ago
Retailer 9
-
$11,288 AUD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$11,956 AUD
View
A
Retailer 11
-
$12,174 AUD
View
A
Retailer 12
-
$12,499 AUD
View
B+
Retailer 13
-
$13,347 AUD
View
Retailer 14
-
$14,446 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
b1d213c0-82e9-476c-9fe6-aa76c3b13a55 · Nov 5
$22,323 AUD
$15,338 USD
View
14 more retailers have this diamond
Prices start from $9,211 AUDSave up to $13,112 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
$9,211 AUD