Cushion|Natural|GIA

0.51ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 6237876648

Certificate GIA 6237876648

Diamond specifications and retailer prices

From $402 USD
As of October 28, 2026
Save $70 USD (15%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $472 USD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6237876648. Listed at 2 retailers as of October 28, 2026, with prices from $402 to $472, a $70 spread on the same certified stone. 77 Diamonds lists it at $472. 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

0.51
Carat
E
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6237876648
Dimensions4.66 × 4.42 × 2.97 mm
L/W Ratio1.05
Top View
4.66 mm4.42 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6237876648
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $472 USD|Low: $402 USD|High: $582 USD|Avg: $469 USD|-2.0%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2$402 USD
77 Diamonds$472 USD

39 data points across 2 retailers

2 retailers$402 USD to $472 USD

A
Cheapest Retailer
-
$402 USD
Most Expensive
B+
77 Diamonds
CUSCPHCEGSNSC · Oct 30
$472 USD
£372 GBP
View
1 more retailer has this diamond
Prices start from $402 USDSave up to $70 USD

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.

A
0.51ct Cushion
$402 USD