Cushion|Natural|GIA

5.18ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 2233840053

Certificate GIA 2233840053

Diamond specifications and retailer prices

From $130,695 CAD
$93,561 USD
As of October 30, 2026
Save $46,025 CAD (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $176,721 CAD at Yorxs · As of October 29, 2026
View at Yorxs

About this 5.18ct natural cushion diamond

This 5.18ct natural cushion sits in the over five 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 2233840053. Listed at 5 retailers as of October 29, 2026, with prices from $130,695 to $176,721, a $46,025 spread on the same certified stone. Yorxs lists it at $176,721. 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

5.18
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2233840053
Dimensions12.12 × 8.68 × 5.94 mm
L/W Ratio1.40
Top View
12.12 mm8.68 mm5.18 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2233840053
Side View
Table 65.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 68.4%

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: Oct 30
Current: $162,543 CAD|Low: $130,695 CAD|High: $186,073 CAD|Avg: $164,240 CAD|-7.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
October 29, 2026
Retailer 2$130,695 CAD
Retailer 3$147,094 CAD
Retailer 4$157,656 CAD
Retailer 1$162,543 CAD
Retailer 6$175,842 CAD
Yorxs$176,721 CAD
Retailer 5$181,709 CAD

17 data points across 7 retailers

5 retailers$130,695 CAD to $176,721 CAD

B+
Cheapest Retailer
-
$130,695 CAD
$93,561 USD
B+
Retailer 2
-
$147,094 CAD
$105,300 USD
View
Final sale: no returns
B
Retailer 3
-
$157,656 CAD
$112,861 USD
View
B
Retailer 4
-
$162,543 CAD
$116,360 USD
View
Most Expensive
B
Yorxs
520027687 · Oct 29
$176,721 CAD
€120,485 EUR
View
4 more retailers have this diamond
Prices start from $130,695 CADSave up to $46,025 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+
5.18ct Cushion
$130,695 CAD