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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 6532506605

Certificate GIA 6532506605

Diamond specifications and retailer prices

From $3,199 AUD
$2,247 USD
As of November 1, 2026
Save $4,212 AUD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $7,411 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 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 6532506605. Listed at 23 retailers as of October 29, 2026, with prices from $3,199 to $7,411, a $4,212 spread on the same certified stone. MOH London lists it at $7,411. 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 angle38.9°
Pavilion angle33.9°
OriginNatural
Grading LabGIA
CertificateGIA 6532506605
Dimensions6.53 × 6.32 × 4.31 mm
L/W Ratio1.03
Top View
6.53 mm6.32 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532506605
Side View
Table 65.0%Crown 38.9°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 68.2%

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: Nov 1
Current: $7,411 AUD|Low: $3,199 AUD|High: $7,534 AUD|Avg: $4,354 AUD|-1.6%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 12$3,199 AUD
Retailer 19$3,335 AUD
Retailer 14$3,488 AUD
Retailer 17$3,506 AUD
Retailer 11$3,576 AUD
Retailer 10$3,686 AUD
Retailer 7$3,696 AUD
Retailer 9$3,915 AUD
Retailer 5$3,993 AUD
Retailer 4$4,029 AUD
Retailer 13$4,241 AUD
Retailer 3$4,242 AUD
Retailer 20$4,242 AUD
Retailer 2$4,271 AUD
Retailer 21$4,385 AUD
Retailer 16$4,606 AUD
Retailer 6$5,116 AUD
Retailer 15$5,158 AUD
Retailer 8$5,226 AUD
Retailer 18$5,418 AUD
MOH London$7,411 AUD

21 data points across 21 retailers

23 retailers$3,199 AUD to $7,411 AUD

A
Cheapest Retailer
-
$3,199 AUD
$2,247 USD
A
Retailer 2
-
$3,335 AUD
HK$18,300 HKD
View
A
Retailer 3
-
$3,488 AUD
$2,450 USD
View
A
Retailer 4
-
$3,506 AUD
$2,463 USD
View
B+
Retailer 5
-
$3,576 AUD
$2,512 USD
View
B+
Retailer 6
-
$3,686 AUD
$2,589 USD
View
Final sale: no returns
A
Retailer 7
-
$3,696 AUD
$2,596 USD
View
A
Retailer 8
-
$3,697 AUD
View
B+
Retailer 9
-
$3,915 AUD
$2,750 USD
View
B+
Retailer 10
-
$3,993 AUD
$2,805 USD
View
A
Retailer 11
-
$4,029 AUD
$2,830 USD
View
B+
Retailer 12
-
$4,241 AUD
£2,345 GBP
View
A
Retailer 13
-
$4,242 AUD
$2,980 USD
View
A
Retailer 14
-
$4,242 AUD
$2,980 USD
View
A
Retailer 15
-
$4,271 AUD
$3,000 USD
View
B+
Retailer 16
-
$4,385 AUD
$3,080 USD
View
Retailer 17
-
$4,545 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
$4,606 AUD
£2,547 GBP
View
Retailer 19
-
$5,116 AUD
$3,594 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
$5,158 AUD
€3,451 EUR
View
B+
Retailer 21
-
$5,226 AUD
$3,671 USD
View
B+
Retailer 22
-
$5,418 AUD
ZAR 61,480 ZAR
View
Most Expensive
B
MOH London
7C8791961 · Oct 29
$7,411 AUD
£4,099 GBP
View
22 more retailers have this diamond
Prices start from $3,199 AUDSave up to $4,212 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
$3,199 AUD