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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 6551664558

Certificate GIA 6551664558

Diamond specifications and retailer prices

From €3,598 EUR
HK$31,400 HKD
As of November 1, 2026
Save €4,576 EUR (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €8,173 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551664558. Listed at 15 retailers as of October 28, 2026, with prices from €3,598 to €8,173, a €4,576 spread on the same certified stone. Queensmith lists it at €8,173. 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

1.50
Carat
D
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551664558
Dimensions7.73 × 5.95 × 4.07 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
7.73 mm5.95 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551664558
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

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 1
Current: €8,173 EUR|Low: €3,575 EUR|High: €8,230 EUR|Avg: €5,184 EUR|+1.7%
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
November 1, 2026
Retailer 9€3,598 EUR
Retailer 2€3,856 EUR
Retailer 5€4,244 EUR
Retailer 3€4,436 EUR
Retailer 6€4,528 EUR
Retailer 12€4,582 EUR
Retailer 8€4,650 EUR
Retailer 11€4,806 EUR
Retailer 4€4,943 EUR
Retailer 13€5,057 EUR
Retailer 10€5,439 EUR
Retailer 7€7,654 EUR
Queensmith€8,173 EUR

25 data points across 13 retailers

15 retailers€3,598 EUR to €8,173 EUR

A
Cheapest Retailer
-
€3,598 EUR
HK$31,400 HKD
A
Retailer 2
-
€3,856 EUR
₹410,328 INR
View
A
Retailer 3
-
€4,244 EUR
SGD 6,408 SGD
View
B+
Retailer 4
-
€4,413 EUR
$4,930 USD
View
B+
Retailer 5
-
€4,436 EUR
$4,956 USD
View
Final sale: no returns
A
Retailer 6
-
€4,528 EUR
£3,984 GBP
View
B+
Retailer 7
-
€4,582 EUR
SGD 6,918 SGD
View
A
Retailer 8
-
€4,650 EUR
£4,091 GBP
View
B+
Retailer 9
-
€4,806 EUR
$5,369 USD
View
B+
Retailer 10
-
€4,943 EUR
$5,522 USD
View
B+
Retailer 11
-
€5,057 EUR
$5,650 USD
View
B+
Retailer 12
-
€5,183 EUR
A$8,908 AUD
View
B+
Retailer 13
-
€5,439 EUR
View
B
Retailer 14
-
€7,654 EUR
£6,733 GBP
View
Most Expensive
B
Queensmith
6551664558 · Oct 28
€8,173 EUR
£7,190 GBP
View
14 more retailers have this diamond
Prices start from €3,598 EURSave up to €4,576 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
€3,598 EUR