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Cushion|Natural|GIA

1.00ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6551048681

Certificate GIA 6551048681

Diamond specifications and retailer prices

From €1,535 EUR
HK$13,400 HKD
As of October 30, 2026
Save €2,074 EUR (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,609 EUR at MOH London · As of October 25, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded E 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 6551048681. Listed at 17 retailers as of October 25, 2026, with prices from €1,535 to €3,609, a €2,074 spread on the same certified stone. MOH London lists it at €3,609. 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551048681
Dimensions6.63 × 5.10 × 3.51 mm
L/W Ratio1.30
Top View
6.63 mm5.10 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6551048681
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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: €3,609 EUR|Low: €1,535 EUR|High: €3,748 EUR|Avg: €2,241 EUR|-3.4%
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
October 31, 2026
Retailer 15€1,535 EUR
Retailer 10€1,643 EUR
Retailer 7€1,841 EUR
Retailer 5€1,898 EUR
Retailer 3€1,923 EUR
Retailer 11€2,013 EUR
Retailer 14€2,057 EUR
Retailer 8€2,059 EUR
Retailer 6€2,148 EUR
Retailer 13€2,182 EUR
Retailer 4€2,248 EUR
Retailer 9€2,258 EUR
Retailer 12€2,505 EUR
Retailer 2€2,569 EUR
MOH London€3,609 EUR

24 data points across 15 retailers

17 retailers€1,535 EUR to €3,609 EUR

A
Cheapest Retailer
-
€1,535 EUR
HK$13,400 HKD
A
Retailer 2
-
€1,643 EUR
₹174,804 INR
View
A
Retailer 3
-
€1,841 EUR
SGD 2,779 SGD
View
A
Retailer 4
-
€1,898 EUR
$2,120 USD
View
Final sale: no returns
A
Retailer 5
-
€1,923 EUR
$2,148 USD
View
B+
Retailer 6
-
€1,982 EUR
$2,214 USD
View
A
Retailer 7
-
€2,013 EUR
£1,771 GBP
View
B+
Retailer 8
-
€2,057 EUR
$2,298 USD
View
B+
Retailer 9
-
€2,059 EUR
$2,300 USD
View
B+
Retailer 10
-
€2,148 EUR
SGD 3,243 SGD
View
B+
Retailer 11
-
€2,182 EUR
$2,438 USD
View
B+
Retailer 12
-
€2,248 EUR
$2,511 USD
View
B+
Retailer 13
-
€2,258 EUR
£1,986 GBP
View
B+
Retailer 14
-
€2,505 EUR
ZAR 45,211 ZAR
View
B+
Retailer 15
-
€2,569 EUR
View
Retailer 16
-
€2,602 EUR
A$4,473 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
MOH London
100B3F5F7 · Oct 25
€3,609 EUR
£3,175 GBP
View
16 more retailers have this diamond
Prices start from €1,535 EURSave up to €2,074 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
1.00ct Cushion
€1,535 EUR