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Cushion|Natural|GIA

0.50ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 6521458289

Certificate GIA 6521458289

Diamond specifications and retailer prices

From $539 AUD
$378 USD
As of November 2, 2026
Save $950 AUD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,490 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521458289. Listed at 12 retailers as of November 2, 2026, with prices from $539 to $1,490, a $950 spread on the same certified stone. MOH London lists it at $1,490. 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

0.50
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle34.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521458289
Dimensions4.84 × 4.21 × 2.93 mm
L/W Ratio1.15
Top View
4.84 mm4.21 mm0.50 ctH / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521458289
Side View
Table 66.0%Crown 37.3°Girdle: ThickPavilion 34.8°Culet: NoneDepth 69.6%

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 2
Current: $1,490 AUD|Low: $402 AUD|High: $1,537 AUD|Avg: $812 AUD|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 3$539 AUD
Retailer 12$541 AUD
Retailer 5$585 AUD
Retailer 10$603 AUD
Retailer 8$741 AUD
Retailer 2$802 AUD
Retailer 9$808 AUD
Retailer 7$808 AUD
Retailer 11$866 AUD
Retailer 6$977 AUD
Retailer 4$1,039 AUD
MOH London$1,490 AUD

38 data points across 12 retailers

12 retailers$539 AUD to $1,490 AUD

B+
Cheapest Retailer
-
$539 AUD
$378 USD
Final sale: no returns
A
Retailer 2
-
$541 AUD
$379 USD
View
B+
Retailer 3
-
$585 AUD
$410 USD
View
B+
Retailer 4
-
$603 AUD
HK$3,300 HKD
View
B+
Retailer 5
-
$741 AUD
$519 USD
View
B+
Retailer 6
-
$802 AUD
£443 GBP
View
B+
Retailer 7
-
$808 AUD
$566 USD
View
B+
Retailer 8
-
$808 AUD
£446 GBP
View
B
Retailer 9
-
$866 AUD
$607 USD
View
B
Retailer 10
-
$977 AUD
€652 EUR
View
Retailer 11
-
$1,039 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
99FF09F6D · Nov 2
$1,490 AUD
£822 GBP
View
11 more retailers have this diamond
Prices start from $539 AUDSave up to $950 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
0.50ct Cushion
$539 AUD