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Cushion|Natural|GIA

0.51ct H SI2 Cushion Natural Diamond

GD • H/SI2 • GIA 6495045073

Certificate GIA 6495045073

Diamond specifications and retailer prices

From $819 AUD
$574 USD
As of November 2, 2026
Save $1,232 AUD (60%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,051 AUD at MOH London · As of November 2, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6495045073. Listed at 9 retailers as of November 2, 2026, with prices from $819 to $2,051, a $1,232 spread on the same certified stone. MOH London lists it at $2,051. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6495045073
Dimensions4.73 × 4.48 × 3.00 mm
L/W Ratio1.06
Top View
4.73 mm4.48 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6495045073
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.8%

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 2
Current: $2,051 AUD|Low: $819 AUD|High: $2,077 AUD|Avg: $1,142 AUD|-0.2%
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 7$819 AUD
Retailer 8$858 AUD
Retailer 6$957 AUD
Retailer 9$992 AUD
Retailer 10$999 AUD
Retailer 3$1,057 AUD
Retailer 11$1,077 AUD
Retailer 2$1,093 AUD
Retailer 5$1,113 AUD
Retailer 4$1,308 AUD
MOH London$2,051 AUD

40 data points across 11 retailers

9 retailers$819 AUD to $2,051 AUD

B+
Cheapest Retailer
-
$819 AUD
$574 USD
Final sale: no returns
B+
Retailer 2
-
$858 AUD
HK$4,700 HKD
View
B
Retailer 3
-
$957 AUD
$671 USD
View
B
Retailer 4
-
$999 AUD
$700 USD
View
B
Retailer 5
-
$1,077 AUD
$755 USD
View
B
Retailer 6
-
$1,093 AUD
£603 GBP
View
B
Retailer 7
-
$1,113 AUD
£614 GBP
View
B
Retailer 8
-
$1,308 AUD
€873 EUR
View
Most Expensive
C
MOH London
0582E195F · Nov 2
$2,051 AUD
£1,132 GBP
View
8 more retailers have this diamond
Prices start from $819 AUDSave up to $1,232 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+
0.51ct Cushion
$819 AUD