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Cushion|Natural|GIA

1.01ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 6555423952

Certificate GIA 6555423952

Diamond specifications and retailer prices

From $1,695 AUD
HK$9,300 HKD
As of October 30, 2026
Save $1,156 AUD (41%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,327 AUD 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
Colour
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: $11,327 AUD|Low: $1,600 AUD|High: $11,327 AUD|Avg: $3,113 AUD|+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$1,695 AUD
Retailer 8$1,749 AUD
Retailer 21$1,815 AUD
Retailer 2$1,910 AUD
Retailer 9$2,022 AUD
Retailer 6$2,064 AUD
Retailer 13$2,093 AUD
Retailer 11$2,238 AUD
Retailer 20$2,262 AUD
Retailer 14$2,377 AUD
Retailer 16$2,406 AUD
Retailer 19$2,406 AUD
Retailer 17$2,491 AUD
Retailer 18$2,718 AUD
Retailer 15$2,851 AUD
Retailer 12$2,913 AUD
Retailer 7$3,043 AUD
Retailer 10$3,956 AUD
Retailer 5$7,562 AUD
Retailer 4$7,929 AUD
Cape Diamonds$11,327 AUD

25 data points across 21 retailers

20 retailers$1,695 AUD to $2,851 AUD

A
Cheapest Retailer
-
$1,695 AUD
HK$9,300 HKD
A
Retailer 2
-
$1,815 AUD
$1,275 USD
View
A
Retailer 3
-
$1,910 AUD
$1,342 USD
View
Retailer 4
-
$2,022 AUD
$1,420 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$2,064 AUD
$1,450 USD
View
Final sale: no returns
A
Retailer 6
-
$2,093 AUD
$1,470 USD
View
Retailer 7
-
$2,238 AUD
$1,572 USD
View
Price last confirmed 23 days ago
A
Retailer 8
-
$2,262 AUD
$1,589 USD
View
Retailer 9
-
$2,377 AUD
$1,670 USD
View
Price last confirmed 22 days ago
A
Retailer 10
-
$2,406 AUD
$1,690 USD
View
A
Retailer 11
-
$2,406 AUD
$1,690 USD
View
A
Retailer 12
-
$2,460 AUD
View
A
Retailer 13
-
$2,491 AUD
$1,750 USD
View
A
Retailer 14
-
$2,718 AUD
$1,909 USD
View
B+
Retailer 15
-
$2,851 AUD
£1,577 GBP
View
Retailer 16
-
$2,913 AUD
View
Price last confirmed 29 days ago
Retailer 17
-
$3,956 AUD
£2,188 GBP
View
Price last confirmed 22 days ago
Retailer 18
-
$7,562 AUD
$5,312 USD
View
Price last confirmed 7 days ago
Retailer 19
-
$7,929 AUD
$5,570 USD
View
Price last confirmed 6 days ago
Most Expensive
Cape Diamonds
cert_6555423952 · Oct 22
$11,327 AUD
ZAR 128,535 ZAR
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from $1,695 AUDSave up to $1,156 AUD

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
$1,695 AUD