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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

GD • F/SI2 • GIA 1558314718

Certificate GIA 1558314718

Diamond specifications and retailer prices

From $4,260 AUD
₹284,318 INR
As of November 2, 2026
Save $5,171 AUD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,430 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558314718. Listed at 14 retailers as of October 29, 2026, with prices from $4,260 to $9,430, a $5,171 spread on the same certified stone. MOH London lists it at $9,430. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558314718
Dimensions7.23 × 5.80 × 4.11 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Indented Natural
Top View
7.23 mm5.80 mm1.51 ctF / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558314718
Side View
Table 61.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 70.8%

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 2
Current: $9,430 AUD|Low: $4,251 AUD|High: $9,494 AUD|Avg: $5,989 AUD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 3$4,260 AUD
Retailer 2$5,192 AUD
Retailer 4$5,285 AUD
Retailer 7$5,609 AUD
Retailer 6$5,738 AUD
Retailer 5$6,345 AUD
MOH London$9,430 AUD

27 data points across 7 retailers

14 retailers$4,260 AUD to $9,430 AUD

A
Cheapest Retailer
-
$4,260 AUD
₹284,318 INR
A
Retailer 2
-
$4,458 AUD
$3,124 USD
View
Final sale: no returns
B+
Retailer 3
-
$4,664 AUD
View
B+
Retailer 4
-
$4,936 AUD
$3,459 USD
View
B+
Retailer 5
-
$5,192 AUD
$3,639 USD
View
B+
Retailer 6
-
$5,248 AUD
$3,678 USD
View
A
Retailer 7
-
$5,285 AUD
£2,917 GBP
View
B+
Retailer 8
-
$5,609 AUD
$3,931 USD
View
B+
Retailer 9
-
$5,738 AUD
£3,166 GBP
View
B+
Retailer 10
-
$5,819 AUD
$4,078 USD
View
B+
Retailer 11
-
$5,957 AUD
$4,175 USD
View
B+
Retailer 12
-
$6,221 AUD
$4,360 USD
View
B+
Retailer 13
-
$6,345 AUD
€4,235 EUR
View
Most Expensive
B
MOH London
9C0F9E361 · Oct 29
$9,430 AUD
£5,204 GBP
View
13 more retailers have this diamond
Prices start from $4,260 AUDSave up to $5,171 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 Cushion
$4,260 AUD