Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6193146707

Certificate GIA 6193146707

Diamond specifications and retailer prices

From €895 EUR
As of November 5, 2026
Save €955 EUR (52%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,850 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6193146707. Listed at 9 retailers as of November 2, 2026, with prices from €895 to €1,850, a €955 spread on the same certified stone. MOH London lists it at €1,850. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6193146707
Dimensions4.63 × 4.62 × 3.22 mm
L/W Ratio1.00
Top View
4.63 mm4.62 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6193146707
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NDepth 69.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €1,850 EUR|Low: €914 EUR|High: €1,872 EUR|Avg: €1,373 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6€914 EUR
Retailer 3€1,139 EUR
Retailer 5€1,320 EUR
Retailer 2€1,406 EUR
Retailer 4€1,558 EUR
MOH London€1,850 EUR

45 data points across 6 retailers

9 retailers€895 EUR to €1,850 EUR

B+
Cheapest Retailer
-
€895 EUR
B+
Retailer 2
-
€896 EUR
View
Retailer 3
-
€914 EUR
View
Price last confirmed 9 days ago
B
Retailer 4
-
€1,139 EUR
View
Retailer 5
-
€1,320 EUR
View
Price last confirmed 33 days ago
B
Retailer 6
-
€1,406 EUR
View
B
Retailer 7
-
€1,549 EUR
View
B
Retailer 8
-
€1,558 EUR
View
Most Expensive
B
MOH London
512FEF2A3 · Nov 2
€1,850 EUR
£1,626 GBP
View
8 more retailers have this diamond
Prices start from €895 EURSave up to €955 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+
0.51ct Cushion
€895 EUR