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Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

VG • D/SI2 • GIA 6552334255

Certificate GIA 6552334255

Diamond specifications and retailer prices

From $4,574 AUD
HK$25,100 HKD
As of November 1, 2026
Save $2,603 AUD (36%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,287 AUD at MOH London · As of October 8, 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552334255. Listed at 16 retailers as of October 31, 2026, with a 57% 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

1.51
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.2°
Pavilion angle33.7°
OriginNatural
Grading LabGIA
CertificateGIA 6552334255
Dimensions6.58 × 6.27 × 4.28 mm
L/W Ratio1.05
Girdle conditionFaceted
Top View
6.58 mm6.27 mm1.51 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552334255
Side View
Table 63.0%Crown 39.2°Girdle: THN-VTKPavilion 33.7°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: $10,287 AUD|Low: $4,519 AUD|High: $21,385 AUD|Avg: $6,751 AUD|-2.3%
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
November 2, 2026
Retailer 8$4,574 AUD
Retailer 6$4,751 AUD
Retailer 10$4,790 AUD
Retailer 15$4,944 AUD
Retailer 12$5,576 AUD
Retailer 5$5,626 AUD
Retailer 7$5,743 AUD
Retailer 4$5,828 AUD
Retailer 3$6,178 AUD
Retailer 13$6,178 AUD
Retailer 14$6,378 AUD
Retailer 9$6,414 AUD
Retailer 2$6,927 AUD
Retailer 11$7,176 AUD
MOH London$10,287 AUD

31 data points across 15 retailers

16 retailers$4,574 AUD to $7,176 AUD

A
Cheapest Retailer
-
$4,574 AUD
HK$25,100 HKD
A
Retailer 2
-
$4,790 AUD
$3,365 USD
View
A
Retailer 3
-
$4,944 AUD
$3,473 USD
View
A
Retailer 4
-
$5,012 AUD
View
A
Retailer 5
-
$5,576 AUD
$3,917 USD
View
B+
Retailer 6
-
$5,626 AUD
$3,952 USD
View
Final sale: no returns
Retailer 7
-
$5,743 AUD
SGD 5,452 SGD
View
Price last confirmed 24 days ago
A
Retailer 8
-
$5,828 AUD
$4,094 USD
View
A
Retailer 9
-
$6,178 AUD
$4,340 USD
View
A
Retailer 10
-
$6,178 AUD
$4,340 USD
View
A
Retailer 11
-
$6,355 AUD
View
A
Retailer 12
-
$6,378 AUD
$4,480 USD
View
A
Retailer 13
-
$6,414 AUD
€4,291 EUR
View
B+
Retailer 14
-
$6,927 AUD
£3,832 GBP
View
B+
Retailer 15
-
$7,176 AUD
$5,041 USD
View
Most Expensive
MOH London
6F24A0D2E · Oct 8
$10,287 AUD
£5,690 GBP
View
Price last confirmed 25 days ago
15 more retailers have this diamond
Prices start from $4,574 AUDSave up to $2,603 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
$4,574 AUD