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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 7556418276

Certificate GIA 7556418276

Diamond specifications and retailer prices

From $11,275 AUD
SGD 10,678 SGD
As of November 1, 2026
Save $8,933 AUD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $20,208 AUD at With Clarity · As of November 1, 2026
View at With Clarity

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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556418276. Listed at 13 retailers as of November 1, 2026, with prices from $11,275 to $20,208, a $8,933 spread on the same certified stone. With Clarity lists it at $20,208. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.58°
Pavilion angle40.65°
OriginNatural
Grading LabGIA
CertificateGIA 7556418276
Dimensions10.66 × 5.85 × 3.95 mm
L/W Ratio1.82
Culet sizeNone
Top View
10.66 mm5.85 mm1.51 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556418276
Side View
Table 58.0%Crown 41.58°Girdle: STK-VTKPavilion 40.65°Culet: NoneDepth 67.5%

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: $14,938 AUD|Low: $11,275 AUD|High: $21,469 AUD|Avg: $15,014 AUD|-3.9%
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
With Clarity
November 2, 2026
Retailer 9$11,275 AUD
Retailer 10$11,935 AUD
Retailer 11$12,206 AUD
Retailer 8$12,408 AUD
Retailer 6$12,465 AUD
Retailer 12$12,578 AUD
Retailer 2$14,467 AUD
Retailer 7$14,496 AUD
Retailer 13$14,604 AUD
Retailer 4$14,915 AUD
Retailer 1$14,938 AUD
Retailer 5$17,449 AUD
Retailer 3$18,301 AUD
With Clarity$20,208 AUD

26 data points across 14 retailers

13 retailers$11,275 AUD to $20,208 AUD

A
Cheapest Retailer
-
$11,275 AUD
SGD 10,678 SGD
B+
Retailer 2
-
$11,935 AUD
$8,364 USD
View
B+
Retailer 3
-
$12,206 AUD
SGD 11,560 SGD
View
B+
Retailer 4
-
$12,408 AUD
$8,696 USD
View
B+
Retailer 5
-
$12,465 AUD
£6,878 GBP
View
B+
Retailer 6
-
$12,578 AUD
$8,815 USD
View
B+
Retailer 7
-
$14,467 AUD
$10,139 USD
View
B+
Retailer 8
-
$14,496 AUD
$10,159 USD
View
B+
Retailer 9
-
$14,604 AUD
$10,235 USD
View
B
Retailer 10
-
$14,915 AUD
$10,453 USD
View
B
Retailer 11
-
$14,938 AUD
€9,970 EUR
View
B
Retailer 12
-
$18,301 AUD
$12,826 USD
View
Most Expensive
B
With Clarity
7556418276 · Nov 1
$20,208 AUD
$14,162 USD
View
12 more retailers have this diamond
Prices start from $11,275 AUDSave up to $8,933 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
$11,275 AUD