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Cushion|Natural|GIA

1.57ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1378045114

Certificate GIA 1378045114

Diamond specifications and retailer prices

From $14,253 AUD
$10,013 USD
As of October 29, 2026
Save $1,334 AUD (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $15,586 AUD at Jared · As of October 30, 2026
View at Jared

About this 1.57ct natural cushion diamond

This 1.57ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1378045114. Listed at 4 retailers as of October 29, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1378045114
Dimensions7.83 × 6.70 × 3.87 mm
L/W Ratio1.17
Top View
7.83 mm6.70 mm1.57 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1378045114
Side View
Table 72.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $15,586 AUD|Low: $11,830 AUD|High: $15,586 AUD|Avg: $13,391 AUD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 26, 2026
Retailer 6$11,830 AUD
Retailer 5$12,354 AUD
Retailer 2$14,253 AUD
Retailer 3$15,088 AUD
Retailer 4$15,088 AUD
Jared$15,586 AUD

8 data points across 6 retailers

4 retailers$14,253 AUD to $15,586 AUD

B
Cheapest Retailer
-
$14,253 AUD
$10,013 USD
B
Retailer 2
-
$15,088 AUD
$10,600 USD
View
B
Retailer 3
-
$15,088 AUD
$10,600 USD
View
Most Expensive
B
Jared
158649542 · Oct 30
$15,586 AUD
$10,950 USD
View
3 more retailers have this diamond
Prices start from $14,253 AUDSave up to $1,334 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
1.57ct Cushion
$14,253 AUD