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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6545580701

Certificate GIA 6545580701

Diamond specifications and retailer prices

From €3,987 EUR
HK$34,800 HKD
As of October 30, 2026
Save €4,595 EUR (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €8,583 EUR at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545580701. Listed at 14 retailers as of October 28, 2026, with prices from €3,987 to €8,583, a €4,595 spread on the same certified stone. Queensmith lists it at €8,583. 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

1.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545580701
Dimensions7.65 × 5.87 × 4.01 mm
L/W Ratio1.30
Top View
7.65 mm5.87 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545580701
Side View
Table 67.0%CrownGirdle: THK-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: Oct 30
Current: €8,583 EUR|Low: €3,987 EUR|High: €8,645 EUR|Avg: €5,681 EUR|+2.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 9€3,987 EUR
Retailer 2€4,297 EUR
Retailer 8€4,586 EUR
Retailer 3€4,733 EUR
Retailer 10€4,898 EUR
Retailer 5€5,176 EUR
Retailer 11€5,254 EUR
Retailer 4€5,338 EUR
Retailer 12€5,447 EUR
Retailer 7€5,790 EUR
Retailer 6€7,861 EUR
Queensmith€8,583 EUR

32 data points across 12 retailers

14 retailers€3,987 EUR to €8,583 EUR

A
Cheapest Retailer
-
€3,987 EUR
HK$34,800 HKD
A
Retailer 2
-
€4,297 EUR
₹457,215 INR
View
A
Retailer 3
-
€4,586 EUR
SGD 6,923 SGD
View
A
Retailer 4
-
€4,733 EUR
SGD 7,145 SGD
View
A
Retailer 5
-
€4,898 EUR
$5,472 USD
View
Final sale: no returns
A
Retailer 6
-
€4,921 EUR
$5,498 USD
View
A
Retailer 7
-
€5,176 EUR
£4,554 GBP
View
B+
Retailer 8
-
€5,254 EUR
$5,870 USD
View
Retailer 9
-
€5,338 EUR
$5,964 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
€5,447 EUR
$6,085 USD
View
B+
Retailer 11
-
€5,549 EUR
A$9,538 AUD
View
B+
Retailer 12
-
€5,790 EUR
View
B+
Retailer 13
-
€7,861 EUR
£6,915 GBP
View
Most Expensive
B
Queensmith
6545580701 · Oct 28
€8,583 EUR
£7,550 GBP
View
13 more retailers have this diamond
Prices start from €3,987 EURSave up to €4,595 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
1.51ct Cushion
€3,987 EUR