Cushion|Natural|GIA

1.01ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 6555423952

Certificate GIA 6555423952

Diamond specifications and retailer prices

From $1,190 USD
HK$9,300 HKD
As of October 30, 2026
Save $812 USD (41%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,956 USD at Cape Diamonds · As of October 22, 2026
View at Cape Diamonds

About this 1.01ct natural cushion diamond

This 1.01ct 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 6555423952. Listed at 20 retailers as of October 30, 2026, with a 68% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
E
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle40°
Pavilion angle34.1°
OriginNatural
Grading LabGIA
CertificateGIA 6555423952
Dimensions6.00 × 5.49 × 3.74 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Top View
6.00 mm5.49 mm1.01 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6555423952
Side View
Table 61.0%Crown 40°Girdle: MED-THKPavilion 34.1°Culet: NDepth 68.2%

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: $7,956 USD|Low: $1,124 USD|High: $7,956 USD|Avg: $2,187 USD|+325.9%
Cape Diamonds
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 3$1,190 USD
Retailer 8$1,228 USD
Retailer 21$1,275 USD
Retailer 2$1,342 USD
Retailer 9$1,420 USD
Retailer 6$1,450 USD
Retailer 13$1,470 USD
Retailer 11$1,572 USD
Retailer 20$1,589 USD
Retailer 14$1,670 USD
Retailer 16$1,690 USD
Retailer 19$1,690 USD
Retailer 17$1,750 USD
Retailer 18$1,909 USD
Retailer 15$2,003 USD
Retailer 12$2,046 USD
Retailer 7$2,138 USD
Retailer 10$2,779 USD
Retailer 5$5,312 USD
Retailer 4$5,570 USD
Cape Diamonds$7,956 USD

25 data points across 21 retailers

20 retailers$1,190 USD to $2,003 USD

A
Cheapest Retailer
-
$1,190 USD
HK$9,300 HKD
A
Retailer 2
-
$1,275 USD
View
A
Retailer 3
-
$1,342 USD
View
Retailer 4
-
$1,420 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$1,450 USD
View
Final sale: no returns
A
Retailer 6
-
$1,470 USD
View
Retailer 7
-
$1,572 USD
View
Price last confirmed 23 days ago
A
Retailer 8
-
$1,589 USD
View
Retailer 9
-
$1,670 USD
View
Price last confirmed 22 days ago
A
Retailer 10
-
$1,690 USD
View
A
Retailer 11
-
$1,690 USD
View
A
Retailer 12
-
$1,728 USD
A$2,658 AUD
View
A
Retailer 13
-
$1,750 USD
View
A
Retailer 14
-
$1,909 USD
View
B+
Retailer 15
-
$2,003 USD
£1,577 GBP
View
Retailer 16
-
$2,046 USD
A$3,148 AUD
View
Price last confirmed 30 days ago
Retailer 17
-
$2,779 USD
£2,188 GBP
View
Price last confirmed 22 days ago
Retailer 18
-
$5,312 USD
View
Price last confirmed 7 days ago
Retailer 19
-
$5,570 USD
View
Price last confirmed 6 days ago
Most Expensive
Cape Diamonds
cert_6555423952 · Oct 22
$7,956 USD
ZAR 128,535 ZAR
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from $1,190 USDSave up to $812 USD

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
1.01ct Cushion
$1,190 USD