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Cushion|Natural|GIA

3.11ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6552048152

Certificate GIA 6552048152

Diamond specifications and retailer prices

From €18,794 EUR
As of November 4, 2026
Save €4,364 EUR (19%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €23,158 EUR at GemTrove · As of November 6, 2026
View at GemTrove

About this 3.11ct natural cushion diamond

This 3.11ct natural cushion sits in the three to five carat band, graded I 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 6552048152. Listed at 9 retailers as of November 4, 2026, with prices from €18,794 to €23,158, a €4,364 spread on the same certified stone. GemTrove lists it at €23,158. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552048152
Dimensions8.25 × 8.07 × 5.47 mm
L/W Ratio1.02
Top View
8.25 mm8.07 mm3.11 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552048152
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: €23,158 EUR|Low: €17,146 EUR|High: €23,565 EUR|Avg: €20,999 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10€17,146 EUR
Retailer 9€18,097 EUR
Retailer 8€18,794 EUR
Retailer 2€19,100 EUR
Retailer 7€20,492 EUR
Retailer 5€20,603 EUR
Retailer 3€21,120 EUR
Retailer 6€21,120 EUR
Retailer 4€21,827 EUR
GemTrove€23,158 EUR

40 data points across 10 retailers

9 retailers€18,794 EUR to €23,158 EUR

Retailer 1
-
€18,097 EUR
Price last confirmed 17 days ago
A
Retailer 2
-
€18,794 EUR
View
A
Retailer 3
-
€19,100 EUR
View
A
Retailer 4
-
€20,492 EUR
View
A
Retailer 5
-
€20,603 EUR
View
A
Retailer 6
-
€21,120 EUR
View
A
Retailer 7
-
€21,120 EUR
View
A
Retailer 8
-
€21,827 EUR
View
Most Expensive
B+
GemTrove
GT-N-01247901-98 · Nov 6
€23,158 EUR
A$39,778 AUD
View
8 more retailers have this diamond
Prices start from €18,794 EURSave up to €4,364 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.

A
3.11ct Cushion
€18,794 EUR