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Cushion|Natural|GIA

0.51ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 1182022177

Certificate GIA 1182022177

Diamond specifications and retailer prices

From $1,119 AUD
As of November 4, 2026
Save $1,330 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,449 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1182022177. Listed at 14 retailers as of November 4, 2026, with prices from $1,119 to $2,449, a $1,330 spread on the same certified stone. MOH London lists it at $2,449. 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1182022177
Dimensions4.90 × 4.33 × 2.92 mm
L/W Ratio1.13
Top View
4.90 mm4.33 mm0.51 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1182022177
Side View
Table 55.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.5%

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 4
Current: $2,449 AUD|Low: $1,119 AUD|High: $2,482 AUD|Avg: $1,668 AUD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 7$1,119 AUD
Retailer 5$1,201 AUD
Retailer 8$1,201 AUD
Retailer 6$1,354 AUD
Retailer 3$1,550 AUD
Retailer 4$1,640 AUD
Retailer 9$2,013 AUD
Retailer 2$2,067 AUD
MOH London$2,449 AUD

41 data points across 9 retailers

14 retailers$1,119 AUD to $2,449 AUD

B+
Cheapest Retailer
-
$1,119 AUD
Final sale: no returns
B+
Retailer 2
-
$1,201 AUD
View
Retailer 3
-
$1,201 AUD
View
Price last confirmed 19 days ago
B
Retailer 4
-
$1,201 AUD
View
B
Retailer 5
-
$1,354 AUD
View
B
Retailer 6
-
$1,383 AUD
View
B
Retailer 7
-
$1,485 AUD
View
B
Retailer 8
-
$1,485 AUD
View
B
Retailer 9
-
$1,543 AUD
View
B
Retailer 10
-
$1,550 AUD
View
B
Retailer 11
-
$1,640 AUD
View
Retailer 12
-
$2,013 AUD
View
Price last confirmed 33 days ago
B
Retailer 13
-
$2,067 AUD
View
Most Expensive
B
MOH London
EEA28D4CE · Nov 4
$2,449 AUD
£1,325 GBP
View
13 more retailers have this diamond
Prices start from $1,119 AUDSave up to $1,330 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
$1,119 AUD