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Cushion|Natural|GIA

1.50ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 2558573307

Certificate GIA 2558573307

Diamond specifications and retailer prices

From $4,774 USD
As of November 6, 2026
Save $4,585 USD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,950 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558573307. Listed at 15 retailers as of November 4, 2026, with a 96% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558573307
Dimensions8.58 × 5.51 × 3.75 mm
L/W Ratio1.56
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cloud, Cavity, Needle, Indented Natural, Natural
Top View
8.58 mm5.51 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558573307
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.1%

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: $9,950 USD|Low: $4,736 USD|High: $10,046 USD|Avg: $6,671 USD|+1.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$4,774 USD
Retailer 2$5,021 USD
Retailer 8$5,677 USD
Retailer 3$5,879 USD
Retailer 7$6,050 USD
Retailer 5$6,137 USD
Retailer 11$6,370 USD
Retailer 4$6,527 USD
Retailer 12$6,653 USD
Retailer 6$6,920 USD
Retailer 9$9,359 USD
Queensmith$9,950 USD

25 data points across 12 retailers

15 retailers$4,774 USD to $9,359 USD

A
Cheapest Retailer
-
$4,774 USD
A
Retailer 2
-
$5,021 USD
View
Retailer 3
-
$5,501 USD
View
Price last confirmed 23 days ago
B+
Retailer 4
-
$5,677 USD
View
B+
Retailer 5
-
$5,871 USD
View
B+
Retailer 6
-
$5,879 USD
View
Final sale: no returns
B+
Retailer 7
-
$6,050 USD
View
B+
Retailer 8
-
$6,137 USD
View
Retailer 9
-
$6,370 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$6,472 USD
View
B+
Retailer 11
-
$6,527 USD
View
B+
Retailer 12
-
$6,653 USD
View
B+
Retailer 13
-
$6,920 USD
View
B
Retailer 14
-
$9,359 USD
View
Most Expensive
Queensmith
2558573307 · Oct 28
$9,950 USD
£7,835 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $4,774 USDSave up to $4,585 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
$4,774 USD