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Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

VG • D/SI1 • GIA 6541734496

Certificate GIA 6541734496

Diamond specifications and retailer prices

From $4,410 AUD
HK$24,200 HKD
As of November 1, 2026
Save $5,341 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,750 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541734496. Listed at 17 retailers as of November 1, 2026, with prices from $4,410 to $9,750, a $5,341 spread on the same certified stone. MOH London lists it at $9,750. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6541734496
Dimensions6.60 × 6.29 × 4.30 mm
L/W Ratio1.05
Top View
6.60 mm6.29 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6541734496
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NDepth 68.3%

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: $9,750 AUD|Low: $4,373 AUD|High: $9,935 AUD|Avg: $5,853 AUD|-1.9%
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
November 2, 2026
Retailer 12$4,410 AUD
Retailer 14$4,688 AUD
Retailer 7$4,726 AUD
Retailer 8$4,876 AUD
Retailer 10$5,078 AUD
Retailer 3$5,152 AUD
Retailer 4$5,282 AUD
Retailer 13$5,452 AUD
Retailer 16$5,452 AUD
Retailer 2$5,455 AUD
Retailer 15$5,623 AUD
Retailer 9$5,964 AUD
Retailer 5$6,600 AUD
Retailer 6$6,926 AUD
Retailer 11$7,167 AUD
MOH London$9,750 AUD

30 data points across 16 retailers

17 retailers$4,410 AUD to $9,750 AUD

A
Cheapest Retailer
-
$4,410 AUD
HK$24,200 HKD
A
Retailer 2
-
$4,688 AUD
$3,293 USD
View
A
Retailer 3
-
$4,726 AUD
$3,320 USD
View
A
Retailer 4
-
$4,876 AUD
$3,425 USD
View
Final sale: no returns
A
Retailer 5
-
$5,078 AUD
$3,567 USD
View
A
Retailer 6
-
$5,152 AUD
$3,619 USD
View
A
Retailer 7
-
$5,282 AUD
$3,710 USD
View
A
Retailer 8
-
$5,452 AUD
$3,830 USD
View
A
Retailer 9
-
$5,452 AUD
$3,830 USD
View
A
Retailer 10
-
$5,455 AUD
£3,017 GBP
View
A
Retailer 11
-
$5,623 AUD
$3,950 USD
View
A
Retailer 12
-
$5,939 AUD
$4,172 USD
View
A
Retailer 13
-
$5,964 AUD
£3,299 GBP
View
Retailer 14
-
$6,584 AUD
View
Price last confirmed 29 days ago
A
Retailer 15
-
$6,926 AUD
$4,865 USD
View
A
Retailer 16
-
$7,167 AUD
ZAR 81,327 ZAR
View
Most Expensive
B+
MOH London
A26675403 · Nov 1
$9,750 AUD
£5,393 GBP
View
16 more retailers have this diamond
Prices start from $4,410 AUDSave up to $5,341 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
$4,410 AUD