CaratHunter
Plans
Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 6555086321

Certificate GIA 6555086321

Diamond specifications and retailer prices

From $4,734 AUD
As of November 4, 2026
Save $4,125 AUD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,860 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555086321. Listed at 15 retailers as of November 4, 2026, with prices from $4,734 to $8,860, a $4,125 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,860. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555086321
Dimensions6.90 × 6.15 × 4.22 mm
L/W Ratio1.12
Top View
6.90 mm6.15 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555086321
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.7%

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 4
Current: $5,466 AUD|Low: $4,734 AUD|High: $9,371 AUD|Avg: $6,267 AUD|-7.8%
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
Wholesale Diamonds Direct
November 7, 2026
Retailer 8$4,734 AUD
Retailer 10$4,813 AUD
Retailer 7$4,849 AUD
Retailer 13$4,973 AUD
Retailer 9$5,059 AUD
Retailer 5$5,170 AUD
Retailer 1$5,466 AUD
Retailer 11$5,938 AUD
Retailer 2$6,036 AUD
Retailer 3$6,117 AUD
Retailer 6$7,391 AUD
Retailer 12$7,984 AUD
Retailer 4$8,486 AUD
Wholesale Diamonds Direct$8,860 AUD

30 data points across 14 retailers

15 retailers$4,734 AUD to $8,860 AUD

A
Cheapest Retailer
-
$4,734 AUD
A
Retailer 2
-
$4,813 AUD
View
A
Retailer 3
-
$4,849 AUD
View
A
Retailer 4
-
$4,973 AUD
View
A
Retailer 5
-
$5,059 AUD
View
A
Retailer 6
-
$5,170 AUD
View
A
Retailer 7
-
$5,466 AUD
View
A
Retailer 8
-
$5,938 AUD
View
A
Retailer 9
-
$6,036 AUD
View
A
Retailer 10
-
$6,117 AUD
View
A
Retailer 11
-
$6,168 AUD
View
A
Retailer 12
-
$7,391 AUD
View
A
Retailer 13
-
$7,984 AUD
View
B+
Retailer 14
-
$8,486 AUD
View
Most Expensive
B+
Wholesale Diamonds Direct
444917161 · Nov 6
$8,860 AUD
$6,087 USD
View
14 more retailers have this diamond
Prices start from $4,734 AUDSave up to $4,125 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
$4,734 AUD