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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 5221766607

Certificate GIA 5221766607

Diamond specifications and retailer prices

From $7,634 AUD
$5,350 USD
As of November 2, 2026
Save $6,583 AUD (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $14,216 AUD at MOH London · As of November 1, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5221766607. Listed at 22 retailers as of November 1, 2026, with prices from $7,634 to $14,216, a $6,583 spread on the same certified stone. MOH London lists it at $14,216. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.84°
Pavilion angle40.61°
OriginNatural
Grading LabGIA
CertificateGIA 5221766607
Dimensions6.94 × 6.53 × 4.44 mm
L/W Ratio1.06
Top View
6.94 mm6.53 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5221766607
Side View
Table 69.0%Crown 29.84°Girdle: Very ThickPavilion 40.61°Culet: NoneDepth 68.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $14,216 AUD|Low: $6,952 AUD|High: $14,387 AUD|Avg: $9,669 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 4$6,952 AUD
Retailer 3$7,634 AUD
Retailer 11$8,059 AUD
Retailer 12$8,529 AUD
Retailer 5$8,583 AUD
Retailer 9$8,601 AUD
Retailer 10$9,241 AUD
Retailer 13$9,462 AUD
Retailer 6$9,782 AUD
Retailer 8$9,900 AUD
Retailer 2$11,141 AUD
Retailer 7$12,533 AUD
MOH London$14,216 AUD

44 data points across 13 retailers

22 retailers$7,634 AUD to $14,216 AUD

B
Cheapest Retailer
-
$7,634 AUD
$5,350 USD
B
Retailer 2
-
$7,968 AUD
$5,584 USD
View
B
Retailer 3
-
$8,059 AUD
$5,648 USD
View
B
Retailer 4
-
$8,168 AUD
$5,724 USD
View
B
Retailer 5
-
$8,371 AUD
View
B
Retailer 6
-
$8,529 AUD
$5,977 USD
View
Final sale: no returns
B
Retailer 7
-
$8,583 AUD
$6,015 USD
View
B
Retailer 8
-
$8,601 AUD
$6,028 USD
View
B
Retailer 9
-
$9,100 AUD
$6,377 USD
View
B
Retailer 10
-
$9,241 AUD
$6,476 USD
View
B
Retailer 11
-
$9,340 AUD
CA$9,092 CAD
View
B
Retailer 12
-
$9,462 AUD
$6,631 USD
View
B
Retailer 13
-
$9,782 AUD
£5,398 GBP
View
Retailer 14
-
$9,900 AUD
View
Price last confirmed 11 days ago
B
Retailer 15
-
$10,117 AUD
$7,090 USD
View
B
Retailer 16
-
$10,117 AUD
$7,090 USD
View
B
Retailer 17
-
$10,434 AUD
$7,313 USD
View
B
Retailer 18
-
$10,459 AUD
$7,330 USD
View
B
Retailer 19
-
$11,141 AUD
€7,436 EUR
View
Retailer 20
-
$11,241 AUD
$7,878 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$12,533 AUD
ZAR 141,893 ZAR
View
Most Expensive
B
MOH London
293E97D95 · Nov 1
$14,216 AUD
£7,845 GBP
View
21 more retailers have this diamond
Prices start from $7,634 AUDSave up to $6,583 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.

B
1.51ct Cushion
$7,634 AUD