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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 $2,442 AUD
HK$13,400 HKD
As of October 30, 2026
Save $3,299 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,740 AUD 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 $2,442 to $5,740, a $3,299 spread on the same certified stone. MOH London lists it at $5,740. 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: $5,740 AUD|Low: $2,442 AUD|High: $5,961 AUD|Avg: $3,621 AUD|-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
Retailer 16
October 30, 2026
Retailer 16$2,442 AUD
Retailer 2$2,613 AUD
Retailer 7$2,928 AUD
Retailer 5$3,018 AUD
Retailer 3$3,058 AUD
Retailer 13$3,146 AUD
Retailer 9$3,201 AUD
Retailer 15$3,271 AUD
Retailer 6$3,416 AUD
Retailer 14$3,470 AUD
Retailer 4$3,575 AUD
Retailer 10$3,591 AUD
Retailer 12$3,984 AUD
Retailer 11$4,081 AUD
Retailer 8$4,139 AUD
MOH London$5,740 AUD

24 data points across 16 retailers

17 retailers$2,442 AUD to $5,740 AUD

A
Cheapest Retailer
-
$2,442 AUD
HK$13,400 HKD
A
Retailer 2
-
$2,613 AUD
₹174,804 INR
View
A
Retailer 3
-
$2,928 AUD
SGD 2,779 SGD
View
A
Retailer 4
-
$3,018 AUD
$2,120 USD
View
Final sale: no returns
A
Retailer 5
-
$3,058 AUD
$2,148 USD
View
B+
Retailer 6
-
$3,146 AUD
$2,210 USD
View
B+
Retailer 7
-
$3,152 AUD
$2,214 USD
View
A
Retailer 8
-
$3,201 AUD
£1,771 GBP
View
B+
Retailer 9
-
$3,271 AUD
$2,298 USD
View
B+
Retailer 10
-
$3,416 AUD
SGD 3,243 SGD
View
B+
Retailer 11
-
$3,470 AUD
$2,438 USD
View
B+
Retailer 12
-
$3,575 AUD
$2,511 USD
View
B+
Retailer 13
-
$3,591 AUD
£1,986 GBP
View
B+
Retailer 14
-
$3,984 AUD
ZAR 45,211 ZAR
View
B+
Retailer 15
-
$4,081 AUD
€2,730 EUR
View
Retailer 16
-
$4,139 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
MOH London
100B3F5F7 · Oct 25
$5,740 AUD
£3,175 GBP
View
16 more retailers have this diamond
Prices start from $2,442 AUDSave up to $3,299 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
1.00ct Cushion
$2,442 AUD