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Cushion|Natural|GIA

1.50ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 2557551279

Certificate GIA 2557551279

Diamond specifications and retailer prices

From $4,147 USD
HK$32,400 HKD
As of November 1, 2026
Save $5,117 USD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,265 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 F 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 2557551279. Listed at 15 retailers as of October 28, 2026, with prices from $4,147 to $9,265, a $5,117 spread on the same certified stone. Queensmith lists it at $9,265. 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

1.50
Carat
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557551279
Dimensions7.54 × 5.81 × 3.99 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.54 mm5.81 mm1.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557551279
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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: $9,265 USD|Low: $4,109 USD|High: $9,328 USD|Avg: $5,883 USD|+2.0%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10$4,147 USD
Retailer 2$4,425 USD
Retailer 5$4,886 USD
Retailer 3$5,111 USD
Retailer 6$5,217 USD
Retailer 12$5,280 USD
Retailer 8$5,403 USD
Retailer 11$5,537 USD
Retailer 4$5,692 USD
Retailer 13$5,819 USD
Retailer 7$6,265 USD
Retailer 9$8,820 USD
Queensmith$9,265 USD

24 data points across 13 retailers

15 retailers$4,147 USD to $9,265 USD

A
Cheapest Retailer
-
$4,147 USD
HK$32,400 HKD
A
Retailer 2
-
$4,425 USD
₹421,397 INR
View
A
Retailer 3
-
$4,886 USD
SGD 6,603 SGD
View
A
Retailer 4
-
$5,080 USD
View
A
Retailer 5
-
$5,111 USD
View
Final sale: no returns
A
Retailer 6
-
$5,217 USD
£4,108 GBP
View
B+
Retailer 7
-
$5,280 USD
SGD 7,135 SGD
View
A
Retailer 8
-
$5,403 USD
£4,254 GBP
View
B+
Retailer 9
-
$5,537 USD
View
B+
Retailer 10
-
$5,692 USD
View
B+
Retailer 11
-
$5,819 USD
View
B+
Retailer 12
-
$5,849 USD
A$8,998 AUD
View
B+
Retailer 13
-
$6,265 USD
€5,967 EUR
View
B
Retailer 14
-
$8,820 USD
£6,945 GBP
View
Most Expensive
B
Queensmith
2557551279 · Oct 28
$9,265 USD
£7,295 GBP
View
14 more retailers have this diamond
Prices start from $4,147 USDSave up to $5,117 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
$4,147 USD