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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 6552998747

Certificate GIA 6552998747

Diamond specifications and retailer prices

From $9,137 AUD
As of November 5, 2026
Save $8,060 AUD (47%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,669 AUD at NZ Jewellers · As of September 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 F 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 6552998747. Listed at 19 retailers as of November 4, 2026, with a 88% 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6552998747
Dimensions11.01 × 5.80 × 3.70 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
11.01 mm5.80 mm1.51 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552998747
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.8%

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 5
Current: $11,568 AUD|Low: $9,137 AUD|High: $17,725 AUD|Avg: $12,078 AUD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 3$9,137 AUD
Retailer 4$9,795 AUD
Retailer 10$10,346 AUD
Retailer 5$10,514 AUD
Retailer 7$11,019 AUD
Retailer 2$11,221 AUD
Retailer 11$11,284 AUD
Retailer 1$11,568 AUD
Retailer 6$11,595 AUD
Retailer 8$12,844 AUD
Retailer 13$13,839 AUD
Retailer 12$14,670 AUD
Retailer 9$17,197 AUD

25 data points across 13 retailers

19 retailers$9,137 AUD to $17,197 AUD

A
Cheapest Retailer
-
$9,137 AUD
Retailer 2
-
$9,709 AUD
View
Price last confirmed 11 days ago
Retailer 3
-
$9,795 AUD
View
Price last confirmed 17 days ago
A
Retailer 4
-
$10,346 AUD
View
Final sale: no returns
Retailer 5
-
$10,514 AUD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$11,019 AUD
View
Retailer 7
-
$11,221 AUD
View
Price last confirmed 16 days ago
Retailer 8
-
$11,284 AUD
View
Price last confirmed 12 days ago
A
Retailer 9
-
$11,568 AUD
View
A
Retailer 10
-
$11,595 AUD
View
B+
Retailer 11
-
$12,438 AUD
View
B+
Retailer 12
-
$12,844 AUD
View
Retailer 13
-
$12,956 AUD
View
Price last confirmed 37 days ago
Retailer 14
-
$13,155 AUD
View
Price last confirmed 37 days ago
Retailer 15
-
$13,839 AUD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$14,670 AUD
View
Retailer 17
-
$14,950 AUD
View
Price last confirmed 39 days ago
B
Retailer 18
-
$17,197 AUD
View
Most Expensive
NZ Jewellers
51c04d1c-39b9-4c2d-99ff-bf2284423d73 · Sep 30
$21,669 AUD
$14,889 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $9,137 AUDSave up to $8,060 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
$9,137 AUD