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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

VG • E/SI2 • GIA 7431617938

Certificate GIA 7431617938

Diamond specifications and retailer prices

From $4,436 AUD
$3,116 USD
As of October 28, 2026
Save $2,185 AUD (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,621 AUD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E 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 7431617938. Listed at 12 retailers as of October 28, 2026, with prices from $4,436 to $6,621, a $2,185 spread on the same certified stone. 77 Diamonds lists it at $6,621. 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
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7431617938
Dimensions6.40 × 6.20 × 4.36 mm
L/W Ratio1.03
Top View
6.40 mm6.20 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7431617938
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.2%

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: Oct 28
Current: $6,621 AUD|Low: $4,408 AUD|High: $6,645 AUD|Avg: $5,680 AUD|+2.1%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$4,468 AUD
Retailer 3$4,526 AUD
Retailer 4$5,583 AUD
Retailer 7$5,907 AUD
Retailer 8$5,907 AUD
Retailer 6$6,106 AUD
Retailer 2$6,358 AUD
77 Diamonds$6,621 AUD

41 data points across 8 retailers

12 retailers$4,436 AUD to $6,621 AUD

A
Cheapest Retailer
-
$4,436 AUD
$3,116 USD
A
Retailer 2
-
$4,468 AUD
$3,139 USD
View
A
Retailer 3
-
$4,526 AUD
$3,180 USD
View
A
Retailer 4
-
$4,548 AUD
$3,195 USD
View
A
Retailer 5
-
$4,740 AUD
$3,330 USD
View
A
Retailer 6
-
$4,797 AUD
View
A
Retailer 7
-
$5,583 AUD
$3,922 USD
View
B+
Retailer 8
-
$5,907 AUD
$4,150 USD
View
B+
Retailer 9
-
$5,907 AUD
$4,150 USD
View
B+
Retailer 10
-
$6,106 AUD
$4,290 USD
View
A
Retailer 11
-
$6,358 AUD
€4,254 EUR
View
Most Expensive
A
77 Diamonds
CUSMBYCN3VV6Y · Oct 30
$6,621 AUD
£3,662 GBP
View
11 more retailers have this diamond
Prices start from $4,436 AUDSave up to $2,185 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
$4,436 AUD