Cushion|Natural|GIA

1.50ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6555133265

Certificate GIA 6555133265

Diamond specifications and retailer prices

From €4,459 EUR
As of November 6, 2026
Save €4,277 EUR (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €9,111 EUR at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded F 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 6555133265. Listed at 19 retailers as of November 4, 2026, with a 96% 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

1.50
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555133265
Dimensions7.53 × 5.80 × 4.01 mm
L/W Ratio1.30
Top View
7.53 mm5.80 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555133265
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.2%

Caratlytics Score

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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: €9,111 EUR|Low: €4,425 EUR|High: €9,180 EUR|Avg: €6,176 EUR|+1.4%
Queensmith
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
November 7, 2026
Retailer 12€4,459 EUR
Retailer 7€4,707 EUR
Retailer 13€4,963 EUR
Retailer 3€5,178 EUR
Retailer 10€5,280 EUR
Retailer 4€5,488 EUR
Retailer 14€5,489 EUR
Retailer 2€5,661 EUR
Retailer 5€5,840 EUR
Retailer 6€6,089 EUR
Retailer 8€6,460 EUR
Retailer 9€7,255 EUR
Retailer 11€8,736 EUR
Queensmith€9,111 EUR

31 data points across 14 retailers

19 retailers€4,459 EUR to €8,736 EUR

A
Cheapest Retailer
-
€4,459 EUR
A
Retailer 2
-
€4,707 EUR
View
B+
Retailer 3
-
€4,963 EUR
View
Retailer 4
-
€5,117 EUR
View
Price last confirmed 24 days ago
B+
Retailer 5
-
€5,178 EUR
View
B+
Retailer 6
-
€5,280 EUR
View
B+
Retailer 7
-
€5,460 EUR
View
B+
Retailer 8
-
€5,464 EUR
View
B+
Retailer 9
-
€5,488 EUR
View
Final sale: no returns
Retailer 10
-
€5,489 EUR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
€5,661 EUR
View
B+
Retailer 12
-
€5,840 EUR
View
Retailer 13
-
€5,866 EUR
View
Price last confirmed 34 days ago
B+
Retailer 14
-
€6,053 EUR
View
B+
Retailer 15
-
€6,089 EUR
View
B+
Retailer 16
-
€6,460 EUR
View
B+
Retailer 17
-
€7,255 EUR
View
B
Retailer 18
-
€8,736 EUR
View
Most Expensive
Queensmith
6555133265 · Oct 28
€9,111 EUR
£8,010 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from €4,459 EURSave up to €4,277 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
1.50ct Cushion
€4,459 EUR