CaratHunter
Plans
Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

VG • D/SI1 • GIA 2547920500

Certificate GIA 2547920500

Diamond specifications and retailer prices

From $888 AUD
As of November 6, 2026
Save $1,029 AUD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,917 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter 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 2547920500. Listed at 11 retailers as of November 4, 2026, with prices from $888 to $1,917, a $1,029 spread on the same certified stone. MOH London lists it at $1,917. 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

0.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 2547920500
Dimensions5.86 × 4.16 × 2.78 mm
L/W Ratio1.41
Top View
5.86 mm4.16 mm0.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547920500
Side View
Table 63.0%Crown 33.1°Girdle: THN-THKPavilion 36.1°Culet: NoneDepth 66.7%

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 6
Current: $1,917 AUD|Low: $888 AUD|High: $2,072 AUD|Avg: $1,354 AUD|-6.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$888 AUD
Retailer 10$966 AUD
Retailer 6$1,048 AUD
Retailer 8$1,240 AUD
Retailer 2$1,243 AUD
Retailer 7$1,310 AUD
Retailer 5$1,311 AUD
Retailer 11$1,416 AUD
Retailer 3$1,611 AUD
Retailer 4$1,615 AUD
MOH London$1,917 AUD

44 data points across 11 retailers

11 retailers$888 AUD to $1,917 AUD

A
Cheapest Retailer
-
$888 AUD
B+
Retailer 2
-
$966 AUD
View
Final sale: no returns
Retailer 3
-
$1,048 AUD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$1,240 AUD
View
B+
Retailer 5
-
$1,243 AUD
View
B
Retailer 6
-
$1,310 AUD
View
B+
Retailer 7
-
$1,311 AUD
View
B
Retailer 8
-
$1,416 AUD
View
Retailer 9
-
$1,611 AUD
View
Price last confirmed 34 days ago
B
Retailer 10
-
$1,615 AUD
View
Most Expensive
B
MOH London
89C57A713 · Nov 4
$1,917 AUD
£1,037 GBP
View
10 more retailers have this diamond
Prices start from $888 AUDSave up to $1,029 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
0.51ct Cushion
$888 AUD