CaratHunter
Plans
Cushion|Natural|GIA

1.05ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6551000742

Certificate GIA 6551000742

Diamond specifications and retailer prices

From $2,192 AUD
HK$12,000 HKD
As of November 2, 2026
Save $2,649 AUD (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,840 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.05ct natural cushion diamond

This 1.05ct natural cushion sits in the classic one-carat band, graded F 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 6551000742. Listed at 20 retailers as of November 1, 2026, with prices from $2,192 to $4,840, a $2,649 spread on the same certified stone. MOH London lists it at $4,840. 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

1.05
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551000742
Dimensions5.96 × 5.92 × 3.88 mm
L/W Ratio1.01
Top View
5.96 mm5.92 mm1.05 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551000742
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.5%

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 2
Current: $4,840 AUD|Low: $2,155 AUD|High: $5,089 AUD|Avg: $3,156 AUD|-4.9%
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 14$2,192 AUD
Retailer 17$2,349 AUD
Retailer 3$2,414 AUD
Retailer 6$2,454 AUD
Retailer 12$2,567 AUD
Retailer 2$2,572 AUD
Retailer 9$2,600 AUD
Retailer 11$2,677 AUD
Retailer 13$2,683 AUD
Retailer 8$2,772 AUD
Retailer 16$2,816 AUD
Retailer 7$3,079 AUD
Retailer 18$3,081 AUD
Retailer 5$3,453 AUD
Retailer 4$3,837 AUD
Retailer 10$4,516 AUD
Retailer 15$4,595 AUD
MOH London$4,840 AUD

22 data points across 18 retailers

20 retailers$2,192 AUD to $4,840 AUD

A
Cheapest Retailer
-
$2,192 AUD
HK$12,000 HKD
A
Retailer 2
-
$2,349 AUD
$1,646 USD
View
Final sale: no returns
A
Retailer 3
-
$2,414 AUD
$1,692 USD
View
A
Retailer 4
-
$2,454 AUD
$1,720 USD
View
A
Retailer 5
-
$2,567 AUD
$1,799 USD
View
A
Retailer 6
-
$2,572 AUD
€1,717 EUR
View
A
Retailer 7
-
$2,600 AUD
$1,822 USD
View
A
Retailer 8
-
$2,677 AUD
View
A
Retailer 9
-
$2,683 AUD
$1,880 USD
View
A
Retailer 10
-
$2,772 AUD
$1,943 USD
View
A
Retailer 11
-
$2,816 AUD
$1,973 USD
View
A
Retailer 12
-
$3,079 AUD
$2,158 USD
View
A
Retailer 13
-
$3,081 AUD
£1,700 GBP
View
B+
Retailer 14
-
$3,161 AUD
View
B+
Retailer 15
-
$3,453 AUD
ZAR 39,095 ZAR
View
Retailer 16
-
$3,548 AUD
View
Price last confirmed 27 days ago
B+
Retailer 17
-
$3,837 AUD
€2,561 EUR
View
Retailer 18
-
$4,516 AUD
$3,165 USD
View
Price last confirmed 9 days ago
B+
Retailer 19
-
$4,595 AUD
$3,220 USD
View
Most Expensive
B+
MOH London
66B4FE87B · Nov 1
$4,840 AUD
£2,671 GBP
View
19 more retailers have this diamond
Prices start from $2,192 AUDSave up to $2,649 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
1.05ct Cushion
$2,192 AUD