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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 2557257471

Certificate GIA 2557257471

Diamond specifications and retailer prices

From €2,452 EUR
HK$21,400 HKD
As of November 1, 2026
Save €2,823 EUR (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,275 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two 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 2557257471. Listed at 18 retailers as of November 1, 2026, with prices from €2,452 to €5,275, a €2,823 spread on the same certified stone. MOH London lists it at €5,275. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557257471
Dimensions6.56 × 6.26 × 4.17 mm
L/W Ratio1.05
Top View
6.56 mm6.26 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557257471
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.6%

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 1
Current: €5,275 EUR|Low: €2,452 EUR|High: €5,566 EUR|Avg: €3,287 EUR|-5.2%
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 1, 2026
Retailer 10€2,452 EUR
Retailer 2€2,515 EUR
Retailer 14€2,637 EUR
Retailer 4€2,683 EUR
Retailer 3€2,706 EUR
Retailer 7€2,793 EUR
Retailer 12€2,855 EUR
Retailer 6€2,875 EUR
Retailer 11€2,977 EUR
Retailer 8€3,052 EUR
Retailer 17€3,270 EUR
Retailer 13€3,296 EUR
Retailer 9€3,532 EUR
Retailer 16€3,726 EUR
Retailer 15€3,912 EUR
Retailer 5€5,210 EUR
MOH London€5,275 EUR

25 data points across 17 retailers

18 retailers€2,452 EUR to €5,275 EUR

A
Cheapest Retailer
-
€2,452 EUR
HK$21,400 HKD
A
Retailer 2
-
€2,515 EUR
$2,810 USD
View
A
Retailer 3
-
€2,637 EUR
$2,946 USD
View
Final sale: no returns
A
Retailer 4
-
€2,683 EUR
$2,998 USD
View
A
Retailer 5
-
€2,706 EUR
$3,023 USD
View
A
Retailer 6
-
€2,793 EUR
$3,120 USD
View
A
Retailer 7
-
€2,855 EUR
View
A
Retailer 8
-
€2,875 EUR
$3,212 USD
View
A
Retailer 9
-
€2,977 EUR
$3,326 USD
View
A
Retailer 10
-
€3,052 EUR
$3,410 USD
View
A
Retailer 11
-
€3,270 EUR
$3,653 USD
View
A
Retailer 12
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€3,296 EUR
£2,900 GBP
View
A
Retailer 13
-
€3,507 EUR
A$6,028 AUD
View
Retailer 14
-
€3,532 EUR
A$6,071 AUD
View
Price last confirmed 24 days ago
A
Retailer 15
-
€3,726 EUR
View
A
Retailer 16
-
€3,912 EUR
ZAR 70,605 ZAR
View
Retailer 17
-
€5,210 EUR
$5,821 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
895FFE586 · Nov 1
€5,275 EUR
£4,640 GBP
View
17 more retailers have this diamond
Prices start from €2,452 EURSave up to €2,823 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
€2,452 EUR