CaratHunter
Plans
Cushion|Natural|GIA

1.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 1548679191

Certificate GIA 1548679191

Diamond specifications and retailer prices

From $5,477 AUD
As of November 6, 2026
Save $6,557 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,034 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1548679191. Listed at 20 retailers as of November 6, 2026, with prices from $5,477 to $12,034, a $6,557 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,034. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 1548679191
Dimensions6.47 × 6.46 × 4.44 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.47 mm6.46 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1548679191
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 38.5°Culet: NDepth 68.8%

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 6
Current: $6,378 AUD|Low: $5,384 AUD|High: $12,034 AUD|Avg: $7,621 AUD|-6.3%
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
Retailer 14
Retailer 15
Retailer 16
Wholesale Diamonds Direct
November 6, 2026
Retailer 5$5,477 AUD
Retailer 2$6,265 AUD
Retailer 1$6,378 AUD
Retailer 9$6,388 AUD
Retailer 15$6,683 AUD
Retailer 3$6,702 AUD
Retailer 12$6,771 AUD
Retailer 7$6,902 AUD
Retailer 13$6,912 AUD
Retailer 10$6,919 AUD
Retailer 4$6,986 AUD
Retailer 8$7,178 AUD
Retailer 6$8,019 AUD
Retailer 11$8,366 AUD
Retailer 14$9,072 AUD
Retailer 16$11,811 AUD
Wholesale Diamonds Direct$12,034 AUD

20 data points across 17 retailers

20 retailers$5,477 AUD to $12,034 AUD

A
Cheapest Retailer
-
$5,477 AUD
A
Retailer 2
-
$6,265 AUD
View
A
Retailer 3
-
$6,378 AUD
View
Final sale: no returns
A
Retailer 4
-
$6,388 AUD
View
A
Retailer 5
-
$6,683 AUD
View
A
Retailer 6
-
$6,702 AUD
View
A
Retailer 7
-
$6,771 AUD
View
Retailer 8
-
$6,902 AUD
View
Price last confirmed 14 days ago
A
Retailer 9
-
$6,912 AUD
View
A
Retailer 10
-
$6,919 AUD
View
A
Retailer 11
-
$6,986 AUD
View
A
Retailer 12
-
$7,178 AUD
View
A
Retailer 13
-
$7,178 AUD
View
Retailer 14
-
$7,625 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$7,830 AUD
View
A
Retailer 16
-
$8,019 AUD
View
A
Retailer 17
-
$8,366 AUD
View
B+
Retailer 18
-
$9,072 AUD
View
B
Retailer 19
-
$11,811 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
625969331 · Nov 6
$12,034 AUD
$8,268 USD
View
19 more retailers have this diamond
Prices start from $5,477 AUDSave up to $6,557 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
$5,477 AUD