CaratHunter
Plans
Cushion|Natural|GIA

5.21ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 2235591980

Certificate GIA 2235591980

Diamond specifications and retailer prices

From $135,746 SGD
£83,609 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $135,746 SGD at 77 Diamonds
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 77 Diamonds

About this 5.21ct natural cushion diamond

This 5.21ct natural cushion sits in the over five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235591980. Listed at a single retailer as of October 28, 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

5.21
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
OriginNatural
Grading LabGIA
CertificateGIA 2235591980
Dimensions11.94 × 9.29 × 6.31 mm
L/W Ratio1.29
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Crystal, Feather
Top View
11.94 mm9.29 mm5.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235591980
Side View
Table 60.0%Crown 33.5°GirdlePavilionCuletDepth 67.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $135,746 SGD|Low: $135,746 SGD|High: $141,013 SGD|Avg: $139,824 SGD|-1.3%
October 28, 2026
77 Diamonds$135,746 SGD

21 data points across 1 retailer

1 retailer

B+
77 Diamonds
CUSDHJTVFYFKY · Oct 28
$135,746 SGD
£83,609 GBP
View

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+
5.21ct Cushion
$135,746 SGD