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Cushion|Natural|GIA

4.01ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1226882877

Certificate GIA 1226882877

Diamond specifications and retailer prices

From $37,354 SGD
$29,146 USD
As of November 5, 2026
1 retailer carries this diamond
Only listing: $37,354 SGD at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 4.01ct natural cushion diamond

This 4.01ct natural cushion sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1226882877. Listed at a single retailer as of November 5, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1226882877
Dimensions10.27 × 8.05 × 5.58 mm
L/W Ratio1.28
Top View
10.27 mm8.05 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1226882877
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 69.4%

Caratlytics Score

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

Last verified: Nov 5
Current: $37,354 SGD|Low: $37,354 SGD|High: $58,056 SGD|Avg: $52,068 SGD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 26, 2026
Blue Nile$37,354 SGD
Retailer 5$50,964 SGD
Retailer 4$51,129 SGD
Retailer 2$56,449 SGD
Retailer 3$57,372 SGD

10 data points across 5 retailers

1 retailer

B+
Blue Nile
29687355 · Nov 5
$37,354 SGD
$29,146 USD
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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+
4.01ct Cushion
$37,354 SGD