Cushion|Natural|GIA

1.56ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 3545803497

Certificate GIA 3545803497

Diamond specifications and retailer prices

From $2,612 USD
As of October 26, 2026
Save $3,407 USD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,019 USD at MOH London · As of October 25, 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 25, 2026, with prices from $2,612 to $6,019, a $3,407 spread on the same certified stone. MOH London lists it at $6,019. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $6,019 USD|Low: $2,591 USD|High: $6,264 USD|Avg: $3,669 USD|-3.9%
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
October 29, 2026
Retailer 6$2,612 USD
Retailer 3$2,701 USD
Retailer 14$2,826 USD
Retailer 16$3,001 USD
Retailer 5$3,005 USD
Retailer 13$3,252 USD
Retailer 10$3,430 USD
Retailer 12$3,430 USD
Retailer 8$3,510 USD
Retailer 11$3,550 USD
Retailer 2$3,744 USD
Retailer 7$3,818 USD
Retailer 15$4,072 USD
Retailer 9$4,201 USD
Retailer 4$4,266 USD
MOH London$6,019 USD

33 data points across 16 retailers

17 retailers$2,612 USD to $6,019 USD

A
Cheapest Retailer
-
$2,612 USD
A
Retailer 2
-
$2,701 USD
HK$21,100 HKD
View
A
Retailer 3
-
$2,826 USD
View
A
Retailer 4
-
$2,998 USD
A$4,613 AUD
View
A
Retailer 5
-
$3,001 USD
View
A
Retailer 6
-
$3,005 USD
View
Final sale: no returns
A
Retailer 7
-
$3,252 USD
View
A
Retailer 8
-
$3,430 USD
View
A
Retailer 9
-
$3,430 USD
View
A
Retailer 10
-
$3,510 USD
View
Price last confirmed 27 days ago
A
Retailer 11
-
$3,550 USD
View
A
Retailer 12
-
$3,744 USD
£2,948 GBP
View
A
Retailer 13
-
$3,818 USD
A$5,874 AUD
View
Price last confirmed 20 days ago
A
Retailer 14
-
$4,072 USD
View
A
Retailer 15
-
$4,201 USD
€4,001 EUR
View
A
Retailer 16
-
$4,266 USD
View
Most Expensive
B+
MOH London
A69B50BB8 · Oct 25
$6,019 USD
£4,739 GBP
View
16 more retailers have this diamond
Prices start from $2,612 USDSave up to $3,407 USD

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
$2,612 USD