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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 2557428908

Certificate GIA 2557428908

Diamond specifications and retailer prices

From $4,685 USD
HK$36,600 HKD
As of November 1, 2026
Save $5,170 USD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,855 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557428908. Listed at 14 retailers as of October 28, 2026, with prices from $4,685 to $9,855, a $5,170 spread on the same certified stone. Queensmith lists it at $9,855. 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

1.50
Carat
D
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557428908
Dimensions7.90 × 6.07 × 3.73 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Cavity, Indented Natural, Needle, Natural
Top View
7.90 mm6.07 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557428908
Side View
Table 69.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.4%

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 1
Current: $9,855 USD|Low: $4,646 USD|High: $9,925 USD|Avg: $6,604 USD|+1.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7$4,685 USD
Retailer 2$4,993 USD
Retailer 9$5,349 USD
Retailer 3$5,521 USD
Retailer 10$5,771 USD
Retailer 6$5,999 USD
Retailer 11$6,170 USD
Retailer 4$6,289 USD
Retailer 12$6,410 USD
Retailer 8$6,833 USD
Retailer 5$9,213 USD
Queensmith$9,855 USD

31 data points across 12 retailers

14 retailers$4,685 USD to $9,855 USD

A
Cheapest Retailer
-
$4,685 USD
HK$36,600 HKD
A
Retailer 2
-
$4,993 USD
₹475,567 INR
View
B+
Retailer 3
-
$5,349 USD
SGD 7,228 SGD
View
A
Retailer 4
-
$5,521 USD
SGD 7,461 SGD
View
B+
Retailer 5
-
$5,741 USD
View
B+
Retailer 6
-
$5,771 USD
View
Final sale: no returns
B+
Retailer 7
-
$5,999 USD
£4,723 GBP
View
B+
Retailer 8
-
$6,170 USD
View
Retailer 9
-
$6,289 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$6,410 USD
View
B+
Retailer 11
-
$6,440 USD
A$9,908 AUD
View
B+
Retailer 12
-
$6,833 USD
€6,508 EUR
View
B
Retailer 13
-
$9,213 USD
£7,254 GBP
View
Most Expensive
B
Queensmith
2557428908 · Oct 28
$9,855 USD
£7,760 GBP
View
13 more retailers have this diamond
Prices start from $4,685 USDSave up to $5,170 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
1.50ct Cushion
$4,685 USD