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Cushion|Natural|GIA

5.05ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 5151783183

Certificate GIA 5151783183

Diamond specifications and retailer prices

From $142,904 CAD
$102,301 USD
As of October 30, 2026
Save $19,133 CAD (12%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $162,038 CAD at William & Sons Jewelers · As of October 30, 2026
View at William & Sons Jewelers

About this 5.05ct natural cushion diamond

This 5.05ct natural cushion sits in the over five carat band, graded G 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 5151783183. Listed at 3 retailers as of October 30, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

5.05
Carat
G
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5151783183
Dimensions10.09 × 9.98 × 6.19 mm
L/W Ratio1.01
Top View
10.09 mm9.98 mm5.05 ctG / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5151783183
Side View
Table 70.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $142,904 CAD|Low: $142,904 CAD|High: $196,123 CAD|Avg: $157,108 CAD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
William & Sons Jewelers
October 5, 2026
Retailer 1$142,904 CAD
Retailer 4$145,250 CAD
Retailer 7$145,690 CAD
Retailer 8$147,307 CAD
Retailer 5$147,650 CAD
Retailer 11$149,334 CAD
Retailer 10$154,651 CAD
Retailer 2$154,665 CAD
Retailer 9$159,577 CAD
Retailer 3$159,819 CAD
William & Sons Jewelers$162,038 CAD
Retailer 12$167,398 CAD
Retailer 13$174,467 CAD
Retailer 6$196,123 CAD

2 data points across 14 retailers

3 retailers$142,904 CAD to $162,038 CAD

B
Cheapest Retailer
-
$142,904 CAD
$102,301 USD
B
Retailer 2
-
$147,307 CAD
$105,453 USD
View
Most Expensive
B
William & Sons Jewelers
cert_5151783183 · Oct 30
$162,038 CAD
$115,998 USD
View
Final sale: no returns
2 more retailers have this diamond
Prices start from $142,904 CADSave up to $19,133 CAD

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
5.05ct Cushion
$142,904 CAD