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Cushion|Natural|GIA

3.11ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 5556116161

Certificate GIA 5556116161

Diamond specifications and retailer prices

From £15,338 GBP
As of November 6, 2026
Save £6,140 GBP (29%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £73,854 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.11ct natural cushion diamond

This 3.11ct natural cushion sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556116161. Listed at 16 retailers as of November 6, 2026, with a 40% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.11
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556116161
Dimensions8.64 × 7.70 × 5.26 mm
L/W Ratio1.12
Top View
8.64 mm7.70 mm3.11 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556116161
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £73,854 GBP|Low: £13,030 GBP|High: £73,854 GBP|Avg: £16,991 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 9£13,030 GBP
Retailer 7£13,255 GBP
Retailer 5£13,414 GBP
Retailer 2£15,338 GBP
Retailer 8£15,615 GBP
Retailer 17£15,812 GBP
Retailer 16£16,268 GBP
Retailer 15£16,785 GBP
Retailer 10£16,823 GBP
Retailer 6£16,988 GBP
Retailer 3£17,953 GBP
Retailer 4£17,953 GBP
Retailer 11£18,551 GBP
Retailer 12£19,092 GBP
Retailer 13£20,129 GBP
Retailer 14£21,479 GBP
MOH London£73,854 GBP

27 data points across 17 retailers

16 retailers£15,338 GBP to £21,479 GBP

Retailer 1
-
£13,255 GBP
Price last confirmed 13 days ago
Retailer 2
-
£13,414 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£15,338 GBP
View
A
Retailer 4
-
£15,812 GBP
View
A
Retailer 5
-
£16,268 GBP
View
A
Retailer 6
-
£16,785 GBP
View
A
Retailer 7
-
£16,823 GBP
View
Retailer 8
-
£16,988 GBP
View
Price last confirmed 15 days ago
A
Retailer 9
-
£17,953 GBP
View
A
Retailer 10
-
£17,953 GBP
View
A
Retailer 11
-
£18,317 GBP
View
A
Retailer 12
-
£18,551 GBP
View
A
Retailer 13
-
£19,092 GBP
View
B+
Retailer 14
-
£20,129 GBP
View
B+
Retailer 15
-
£21,479 GBP
View
Most Expensive
MOH London
53E2BB519 · Nov 4
£73,854 GBP
View
Price under review
15 more retailers have this diamond
Prices start from £15,338 GBPSave up to £6,140 GBP

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.

A
3.11ct Cushion
£15,338 GBP