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Cushion|Natural|GIA

5.18ct G SI1 Cushion Natural Diamond

VG • G/SI1 • GIA 2233840053

Certificate GIA 2233840053

Diamond specifications and retailer prices

From $166,286 NZD
$93,561 USD
As of October 31, 2026
Save $58,609 NZD (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $224,895 NZD at Yorxs · As of November 2, 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 31, 2026, with prices from $166,286 to $224,895, a $58,609 spread on the same certified stone. Yorxs lists it at $224,895. 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
Colour
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 31
Current: $206,807 NZD|Low: $166,286 NZD|High: $236,744 NZD|Avg: $208,627 NZD|-7.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 2, 2026
Retailer 2$166,286 NZD
Retailer 3$187,150 NZD
Retailer 4$200,588 NZD
Retailer 1$206,807 NZD
Retailer 6$223,727 NZD
Yorxs$224,895 NZD
Retailer 5$231,191 NZD

19 data points across 7 retailers

5 retailers$166,286 NZD to $224,895 NZD

B+
Cheapest Retailer
-
$166,286 NZD
$93,561 USD
B+
Retailer 2
-
$187,150 NZD
$105,300 USD
View
Final sale: no returns
B
Retailer 3
-
$200,588 NZD
$112,861 USD
View
B
Retailer 4
-
$206,807 NZD
$116,360 USD
View
Most Expensive
B
Yorxs
520027687 · Nov 2
$224,895 NZD
€120,512 EUR
View
4 more retailers have this diamond
Prices start from $166,286 NZDSave up to $58,609 NZD

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
$166,286 NZD