Cushion|Lab Grown|GIA

5.18ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1

Diamond specifications and retailer prices

From $4,217 USD
CA$5,858 CAD
As of October 30, 2026
Save $162 USD (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $4,379 USD at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 5.18ct lab-grown cushion diamond

This 5.18ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of October 30, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.18
Carat
D
Color
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions10.13 × 9.97 × 6.57 mm
L/W Ratio1.02
Top View
10.13 mm9.97 mm5.18 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $4,379 USD|Low: $2,619 USD|High: $4,523 USD|Avg: $3,925 USD|+0.6%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4$2,619 USD
Retailer 2$4,217 USD
Moon Ocean$4,379 USD
Retailer 3$4,523 USD

21 data points across 4 retailers

2 retailers$4,217 USD to $4,379 USD

B
Cheapest Retailer
-
$4,217 USD
CA$5,858 CAD
Most Expensive
B
Moon Ocean
NVL-FFE5F4632-981 · Oct 30
$4,379 USD
£3,448 GBP
View
1 more retailer has this diamond
Prices start from $4,217 USDSave up to $162 USD

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
$4,217 USD