Cushion|Natural|GIA

1.29ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 5156114666

Certificate GIA 5156114666

Diamond specifications and retailer prices

From $5,368 AUD
$3,762 USD
As of November 2, 2026
Save $3,310 AUD (38%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $11,244 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.29ct natural cushion diamond

This 1.29ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 5156114666. Listed at 21 retailers as of October 31, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.29
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5156114666
Dimensions6.23 × 5.68 × 3.96 mm
L/W Ratio1.10
Top View
6.23 mm5.68 mm1.29 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5156114666
Side View
Table 61.0%CrownGirdle: THN-EXTPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $11,244 AUD|Low: $4,920 AUD|High: $11,380 AUD|Avg: $7,048 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
November 2, 2026
Retailer 11$5,368 AUD
Retailer 6$5,486 AUD
Retailer 7$5,903 AUD
Retailer 3$6,057 AUD
Retailer 9$6,395 AUD
Retailer 10$6,764 AUD
Retailer 4$7,020 AUD
Retailer 8$7,117 AUD
Retailer 2$7,532 AUD
Retailer 5$8,678 AUD
MOH London$11,244 AUD

43 data points across 11 retailers

21 retailers$5,368 AUD to $8,678 AUD

B
Cheapest Retailer
-
$5,368 AUD
$3,762 USD
B
Retailer 2
-
$5,486 AUD
$3,845 USD
View
B
Retailer 3
-
$5,516 AUD
$3,866 USD
View
B
Retailer 4
-
$5,628 AUD
$3,944 USD
View
B
Retailer 5
-
$5,643 AUD
$3,954 USD
View
B
Retailer 6
-
$5,903 AUD
$4,137 USD
View
Final sale: no returns
B
Retailer 7
-
$6,039 AUD
CA$5,879 CAD
View
B
Retailer 8
-
$6,057 AUD
$4,245 USD
View
B
Retailer 9
-
$6,061 AUD
$4,248 USD
View
B
Retailer 10
-
$6,395 AUD
$4,482 USD
View
B
Retailer 11
-
$6,764 AUD
$4,740 USD
View
B
Retailer 12
-
$6,966 AUD
$4,882 USD
View
B
Retailer 13
-
$7,020 AUD
£3,874 GBP
View
Retailer 14
-
$7,117 AUD
View
Price last confirmed 24 days ago
C
Retailer 15
-
$7,192 AUD
$5,040 USD
View
C
Retailer 16
-
$7,192 AUD
$5,040 USD
View
C
Retailer 17
-
$7,434 AUD
$5,210 USD
View
B
Retailer 18
-
$7,532 AUD
€5,027 EUR
View
Retailer 19
-
$7,795 AUD
$5,463 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$8,678 AUD
ZAR 98,248 ZAR
View
Most Expensive
MOH London
889CBE4E8 · Nov 1
$11,244 AUD
£6,205 GBP
View
Price under review
20 more retailers have this diamond
Prices start from $5,368 AUDSave up to $3,310 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
1.29ct Cushion
$5,368 AUD