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Cushion|Natural|GIA

1.01ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6551542090

Certificate GIA 6551542090

Diamond specifications and retailer prices

From $1,589 AUD
As of November 6, 2026
Save $1,557 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,146 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct natural cushion diamond

This 1.01ct natural cushion sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551542090. Listed at 11 retailers as of November 4, 2026, with prices from $1,589 to $3,146, a $1,557 spread on the same certified stone. MOH London lists it at $3,146. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551542090
Dimensions5.99 × 5.69 × 3.92 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
5.99 mm5.69 mm1.01 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551542090
Side View
Table 65.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 68.9%

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: Nov 6
Current: $3,146 AUD|Low: $1,589 AUD|High: $3,832 AUD|Avg: $2,389 AUD|-17.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 8$1,589 AUD
Retailer 7$1,649 AUD
Retailer 5$1,652 AUD
Retailer 11$1,861 AUD
Retailer 4$1,944 AUD
Retailer 10$1,960 AUD
Retailer 2$2,102 AUD
Retailer 6$2,142 AUD
Retailer 9$2,735 AUD
Retailer 3$2,819 AUD
MOH London$3,146 AUD

36 data points across 11 retailers

11 retailers$1,589 AUD to $3,146 AUD

A
Cheapest Retailer
-
$1,589 AUD
Final sale: no returns
A
Retailer 2
-
$1,649 AUD
View
A
Retailer 3
-
$1,652 AUD
View
Retailer 4
-
$1,861 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$1,944 AUD
View
Retailer 6
-
$1,960 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$2,102 AUD
View
A
Retailer 8
-
$2,142 AUD
View
A
Retailer 9
-
$2,735 AUD
View
Retailer 10
-
$2,819 AUD
View
Price last confirmed 33 days ago
Most Expensive
B+
MOH London
331A60AD6 · Nov 4
$3,146 AUD
£1,702 GBP
View
10 more retailers have this diamond
Prices start from $1,589 AUDSave up to $1,557 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
$1,589 AUD