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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5543750463

Certificate GIA 5543750463

Diamond specifications and retailer prices

From €4,280 EUR
HK$37,500 HKD
As of November 1, 2026
Save €4,564 EUR (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €8,843 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543750463. Listed at 19 retailers as of October 28, 2026, with prices from €4,280 to €8,843, a €4,564 spread on the same certified stone. Queensmith lists it at €8,843. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543750463
Dimensions7.38 × 5.80 × 3.97 mm
L/W Ratio1.27
Top View
7.38 mm5.80 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543750463
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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: €8,843 EUR|Low: €4,245 EUR|High: €8,911 EUR|Avg: €5,988 EUR|+1.8%
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 2, 2026
Retailer 11€4,280 EUR
Retailer 2€4,571 EUR
Retailer 12€4,779 EUR
Retailer 5€5,041 EUR
Retailer 3€5,210 EUR
Retailer 6€5,281 EUR
Retailer 8€5,415 EUR
Retailer 4€5,785 EUR
Retailer 13€5,897 EUR
Retailer 7€6,165 EUR
Retailer 10€6,935 EUR
Retailer 9€8,316 EUR
Queensmith€8,843 EUR

23 data points across 13 retailers

19 retailers€4,280 EUR to €8,843 EUR

A
Cheapest Retailer
-
€4,280 EUR
HK$37,500 HKD
A
Retailer 2
-
€4,571 EUR
₹488,323 INR
View
A
Retailer 3
-
€4,779 EUR
$5,360 USD
View
Retailer 4
-
€4,913 EUR
SGD 7,446 SGD
View
Price last confirmed 20 days ago
A
Retailer 5
-
€5,041 EUR
SGD 7,641 SGD
View
A
Retailer 6
-
€5,210 EUR
$5,843 USD
View
Final sale: no returns
A
Retailer 7
-
€5,242 EUR
$5,879 USD
View
A
Retailer 8
-
€5,242 EUR
$5,880 USD
View
A
Retailer 9
-
€5,281 EUR
£4,664 GBP
View
A
Retailer 10
-
€5,415 EUR
£4,782 GBP
View
Retailer 11
-
€5,618 EUR
A$9,695 AUD
View
Price last confirmed 23 days ago
Retailer 12
-
€5,684 EUR
$6,375 USD
View
Price last confirmed 18 days ago
B+
Retailer 13
-
€5,785 EUR
$6,488 USD
View
B+
Retailer 14
-
€5,800 EUR
A$10,008 AUD
View
B+
Retailer 15
-
€5,897 EUR
$6,614 USD
View
B+
Retailer 16
-
€6,165 EUR
View
B+
Retailer 17
-
€6,935 EUR
ZAR 125,655 ZAR
View
B+
Retailer 18
-
€8,316 EUR
£7,344 GBP
View
Most Expensive
B
Queensmith
5543750463 · Oct 28
€8,843 EUR
£7,810 GBP
View
18 more retailers have this diamond
Prices start from €4,280 EURSave up to €4,564 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
€4,280 EUR