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Cushion|Natural|GIA

3.05ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 1558793905

Certificate GIA 1558793905

Diamond specifications and retailer prices

From $22,228 SGD
As of November 6, 2026
Save $7,761 SGD (26%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $29,989 SGD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 3.05ct natural cushion diamond

This 3.05ct natural cushion sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1558793905. Listed at 8 retailers as of October 31, 2026, with prices from $22,228 to $29,989, a $7,761 spread on the same certified stone. Blue Nile lists it at $29,989. 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

3.05
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1558793905
Dimensions9.77 × 7.49 × 5.11 mm
L/W Ratio1.30
Top View
9.77 mm7.49 mm3.05 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558793905
Side View
Table 62.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $29,989 SGD|Low: $22,228 SGD|High: $30,101 SGD|Avg: $25,042 SGD|-0.4%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3$22,228 SGD
Retailer 2$22,281 SGD
Retailer 6$23,387 SGD
Retailer 5$24,817 SGD
Retailer 4$26,511 SGD
Retailer 7$28,021 SGD
Blue Nile$29,989 SGD

44 data points across 7 retailers

8 retailers$22,228 SGD to $29,989 SGD

A
Cheapest Retailer
-
$22,228 SGD
A
Retailer 2
-
$22,281 SGD
View
B+
Retailer 3
-
$23,387 SGD
View
Final sale: no returns
B+
Retailer 4
-
$24,644 SGD
View
Retailer 5
-
$24,817 SGD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
$26,511 SGD
View
B
Retailer 7
-
$28,021 SGD
View
Most Expensive
B
Blue Nile
30380912 · Oct 31
$29,989 SGD
$23,400 USD
View
7 more retailers have this diamond
Prices start from $22,228 SGDSave up to $7,761 SGD

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
3.05ct Cushion
$22,228 SGD