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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 5376161653

Certificate GIA 5376161653

Diamond specifications and retailer prices

From $3,050 AUD
HK$16,700 HKD
As of November 1, 2026
Save $4,043 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,093 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5376161653. Listed at 19 retailers as of October 29, 2026, with prices from $3,050 to $7,093, a $4,043 spread on the same certified stone. MOH London lists it at $7,093. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5376161653
Dimensions6.69 × 6.21 × 4.18 mm
L/W Ratio1.08
Top View
6.69 mm6.21 mm1.51 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5376161653
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,093 AUD|Low: $2,941 AUD|High: $7,093 AUD|Avg: $4,116 AUD|+2.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 14$3,050 AUD
Retailer 10$3,182 AUD
Retailer 17$3,196 AUD
Retailer 5$3,279 AUD
Retailer 4$3,390 AUD
Retailer 6$3,443 AUD
Retailer 16$3,649 AUD
Retailer 19$3,712 AUD
Retailer 8$3,965 AUD
Retailer 15$3,987 AUD
Retailer 7$4,181 AUD
Retailer 18$4,181 AUD
Retailer 12$4,305 AUD
Retailer 3$4,324 AUD
Retailer 11$4,389 AUD
Retailer 2$4,712 AUD
Retailer 13$4,950 AUD
Retailer 9$5,802 AUD
MOH London$7,093 AUD

36 data points across 19 retailers

19 retailers$3,050 AUD to $7,093 AUD

B+
Cheapest Retailer
-
$3,050 AUD
HK$16,700 HKD
B+
Retailer 2
-
$3,182 AUD
$2,230 USD
View
Retailer 3
-
$3,253 AUD
$2,280 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
$3,279 AUD
$2,298 USD
View
B+
Retailer 5
-
$3,390 AUD
View
B+
Retailer 6
-
$3,443 AUD
$2,413 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,649 AUD
$2,557 USD
View
B+
Retailer 8
-
$3,712 AUD
$2,601 USD
View
B+
Retailer 9
-
$3,965 AUD
$2,779 USD
View
B+
Retailer 10
-
$3,987 AUD
CA$3,881 CAD
View
B+
Retailer 11
-
$4,181 AUD
$2,930 USD
View
B+
Retailer 12
-
$4,181 AUD
$2,930 USD
View
B+
Retailer 13
-
$4,305 AUD
£2,376 GBP
View
B+
Retailer 14
-
$4,324 AUD
$3,030 USD
View
Retailer 15
-
$4,389 AUD
View
Price last confirmed 25 days ago
B+
Retailer 16
-
$4,712 AUD
€3,145 EUR
View
B+
Retailer 17
-
$4,950 AUD
ZAR 56,042 ZAR
View
B
Retailer 18
-
$5,802 AUD
$4,066 USD
View
Most Expensive
B
MOH London
2996E65DA · Oct 29
$7,093 AUD
£3,914 GBP
View
18 more retailers have this diamond
Prices start from $3,050 AUDSave up to $4,043 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
$3,050 AUD