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Cushion|Natural|GIA

1.56ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2181237079

Certificate GIA 2181237079

Diamond specifications and retailer prices

From $18,200 AUD
£10,068 GBP
As of October 30, 2026
Save $649 AUD (3%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $24,348 AUD at MOH London · As of October 21, 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 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 2181237079. Listed at 6 retailers as of October 28, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2181237079
Dimensions12.87 × 5.62 × 3.69 mm
L/W Ratio2.29
Girdle conditionFaceted
Culet sizeNone
Top View
12.87 mm5.62 mm1.56 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2181237079
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $24,348 AUD|Low: $14,514 AUD|High: $25,874 AUD|Avg: $18,375 AUD|-4.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$14,682 AUD
Retailer 5$15,507 AUD
Retailer 2$18,200 AUD
Retailer 4$18,262 AUD
Retailer 7$18,262 AUD
Retailer 3$18,850 AUD
Retailer 6$18,874 AUD
MOH London$24,348 AUD

39 data points across 8 retailers

6 retailers$18,200 AUD to $18,850 AUD

B
Cheapest Retailer
-
$18,200 AUD
£10,068 GBP
Retailer 2
-
$18,262 AUD
$12,830 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$18,262 AUD
$12,830 USD
View
Price last confirmed 11 days ago
B
Retailer 4
-
$18,850 AUD
€12,612 EUR
View
Retailer 5
-
$18,874 AUD
$13,260 USD
View
Price last confirmed 11 days ago
Most Expensive
MOH London
661592C17 · Oct 21
$24,348 AUD
£13,469 GBP
View
Price last confirmed 9 days ago
5 more retailers have this diamond
Prices start from $18,200 AUDSave up to $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.

B
1.56ct Cushion
$18,200 AUD