Cushion|Natural|GIA

1.57ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1

Certificate GIA 1

Diamond specifications and retailer prices

From €8,592 EUR
$9,599 USD
As of October 31, 2026
Save €2,244 EUR (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €10,836 EUR at Blue Nile · As of October 31, 2026
View at Blue Nile

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of October 31, 2026, with prices from €8,592 to €10,836, a €2,244 spread on the same certified stone. Blue Nile lists it at €10,836. 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

1.57
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1
Dimensions6.82 × 6.38 × 4.31 mm
L/W Ratio1.07
Top View
6.82 mm6.38 mm1.57 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: €10,836 EUR|Low: €8,490 EUR|High: €10,836 EUR|Avg: €9,536 EUR
Blue Nile
Retailer 2
Retailer 3
September 23, 2026
Retailer 2€8,592 EUR
Retailer 3€9,332 EUR
Blue Nile€10,836 EUR

3 data points across 3 retailers

3 retailers€8,592 EUR to €10,836 EUR

B+
Cheapest Retailer
-
€8,592 EUR
$9,599 USD
B
Retailer 2
-
€9,332 EUR
$10,426 USD
View
Most Expensive
B
Blue Nile
285145 · Oct 31
€10,836 EUR
$12,106 USD
View
2 more retailers have this diamond
Prices start from €8,592 EURSave up to €2,244 EUR

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
€8,592 EUR