CaratHunter
Plans
Cushion|Natural|GIA

3.51ct H SI1 Cushion Natural Diamond

H/SI1

Diamond specifications and retailer prices

From €46,688 EUR
CA$72,730 CAD
As of November 2, 2026
Save €9,698 EUR (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €56,386 EUR at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at 2 retailers as of November 2, 2026, with prices from €46,688 to €56,386, a €9,698 spread on the same certified stone. The Diamond Guys lists it at €56,386. 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

3.51
Carat
H
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.24 × 8.19 × 5.71 mm
L/W Ratio1.25
Top View
10.24 mm8.19 mm3.51 ctH / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 66.0%CrownGirdle: MediumPavilionCuletDepth 69.7%

Caratlytics Score

How it works →
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: Nov 2
Current: €46,688 EUR|Low: €46,688 EUR|High: €56,386 EUR|Avg: €53,154 EUR
Retailer 1
The Diamond Guys
September 4, 2026
Retailer 1€46,688 EUR
The Diamond Guys€56,386 EUR

2 data points across 2 retailers

2 retailers€46,688 EUR to €56,386 EUR

B
Cheapest Retailer
-
€46,688 EUR
CA$72,730 CAD
Most Expensive
C
The Diamond Guys
1940179289 · Nov 2
€56,386 EUR
$63,243 USD
View
1 more retailer has this diamond
Prices start from €46,688 EURSave up to €9,698 EUR

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
3.51ct Cushion
€46,688 EUR