CaratHunter
Plans
Cushion|Natural|GIA

1.56ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 3545803497

Certificate GIA 3545803497

Diamond specifications and retailer prices

From $3,718 AUD
$2,612 USD
As of October 31, 2026
Save $4,837 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,555 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.56ct natural cushion diamond

This 1.56ct natural cushion sits in the one-and-a-half to two carat band, graded I 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 3545803497. Listed at 17 retailers as of October 31, 2026, with prices from $3,718 to $8,555, a $4,837 spread on the same certified stone. MOH London lists it at $8,555. 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

1.56
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle36.1°
OriginNatural
Grading LabGIA
CertificateGIA 3545803497
Dimensions6.72 × 6.52 × 4.45 mm
L/W Ratio1.03
Top View
6.72 mm6.52 mm1.56 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545803497
Side View
Table 61.0%Crown 38.9°Girdle: MED-STKPavilion 36.1°Culet: NoneDepth 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 31
Current: $8,555 AUD|Low: $3,689 AUD|High: $8,602 AUD|Avg: $5,128 AUD|-0.1%
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
November 2, 2026
Retailer 6$3,718 AUD
Retailer 10$3,881 AUD
Retailer 11$4,110 AUD
Retailer 3$4,272 AUD
Retailer 5$4,278 AUD
Retailer 15$4,630 AUD
Retailer 12$4,883 AUD
Retailer 14$4,883 AUD
Retailer 8$4,997 AUD
Retailer 13$5,054 AUD
Retailer 9$5,347 AUD
Retailer 7$5,436 AUD
Retailer 16$5,797 AUD
Retailer 2$5,990 AUD
Retailer 4$6,073 AUD
MOH London$8,555 AUD

35 data points across 16 retailers

17 retailers$3,718 AUD to $8,555 AUD

A
Cheapest Retailer
-
$3,718 AUD
$2,612 USD
A
Retailer 2
-
$3,881 AUD
HK$21,300 HKD
View
A
Retailer 3
-
$4,110 AUD
$2,887 USD
View
A
Retailer 4
-
$4,268 AUD
View
A
Retailer 5
-
$4,272 AUD
$3,001 USD
View
A
Retailer 6
-
$4,278 AUD
$3,005 USD
View
Final sale: no returns
A
Retailer 7
-
$4,630 AUD
$3,252 USD
View
A
Retailer 8
-
$4,883 AUD
$3,430 USD
View
A
Retailer 9
-
$4,883 AUD
$3,430 USD
View
Retailer 10
-
$4,997 AUD
$3,510 USD
View
Price last confirmed 31 days ago
A
Retailer 11
-
$5,054 AUD
$3,550 USD
View
A
Retailer 12
-
$5,347 AUD
£2,957 GBP
View
Retailer 13
-
$5,436 AUD
View
Price last confirmed 24 days ago
Retailer 14
-
$5,797 AUD
$4,072 USD
View
Price last confirmed 10 days ago
A
Retailer 15
-
$5,990 AUD
€4,007 EUR
View
A
Retailer 16
-
$6,073 AUD
$4,266 USD
View
Most Expensive
B+
MOH London
A69B50BB8 · Nov 1
$8,555 AUD
£4,732 GBP
View
16 more retailers have this diamond
Prices start from $3,718 AUDSave up to $4,837 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
1.56ct Cushion
$3,718 AUD