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Cushion|Natural|GIA

3.00ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 3555372702

Certificate GIA 3555372702

Diamond specifications and retailer prices

From $12,359 USD
£9,732 GBP
As of November 3, 2026
Save $2,541 USD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $14,900 USD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3ct natural cushion diamond

This 3ct natural cushion sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555372702. Listed at 3 retailers as of October 31, 2026, with prices from $12,359 to $14,900, a $2,541 spread on the same certified stone. Blue Nile lists it at $14,900. 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

3.00
Carat
J
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.3°
Pavilion angle56.7°
OriginNatural
Grading LabGIA
CertificateGIA 3555372702
Dimensions8.60 × 8.38 × 5.35 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Indented Natural, Feather, Needle, Natural
Top View
8.60 mm8.38 mm3.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555372702
Side View
Table 70.0%Crown 30.3°Girdle: STK-THKPavilion 56.7°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $14,900 USD|Low: $12,359 USD|High: $15,343 USD|Avg: $13,642 USD|-2.9%
Blue Nile
Retailer 2
Retailer 3
November 3, 2026
Retailer 2$12,359 USD
Retailer 3$12,804 USD
Blue Nile$14,900 USD

41 data points across 3 retailers

3 retailers$12,359 USD to $14,900 USD

A
Cheapest Retailer
-
$12,359 USD
£9,732 GBP
A
Retailer 2
-
$12,804 USD
View
Most Expensive
B+
Blue Nile
29286457 · Oct 31
$14,900 USD
View
2 more retailers have this diamond
Prices start from $12,359 USDSave up to $2,541 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
3.00ct Cushion
$12,359 USD