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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

ID • K/SI2 • GIA 2558676335

Certificate GIA 2558676335

Diamond specifications and retailer prices

From $2,508 USD
As of November 6, 2026
Save $3,036 USD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,544 USD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558676335. Listed at 12 retailers as of November 4, 2026, with prices from $2,508 to $5,544, a $3,036 spread on the same certified stone. MOH London lists it at $5,544. 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
K
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558676335
Dimensions7.60 × 5.83 × 4.00 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
7.60 mm5.83 mm1.50 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558676335
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

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: $5,544 USD|Low: $2,496 USD|High: $5,679 USD|Avg: $3,510 USD|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$2,508 USD
Retailer 2$2,648 USD
Retailer 5$2,957 USD
Retailer 10$3,345 USD
Retailer 6$3,439 USD
Retailer 9$3,467 USD
Retailer 4$3,484 USD
Retailer 7$3,550 USD
Retailer 3$3,868 USD
MOH London$5,544 USD

32 data points across 10 retailers

12 retailers$2,508 USD to $5,544 USD

A
Cheapest Retailer
-
$2,508 USD
A
Retailer 2
-
$2,648 USD
View
A
Retailer 3
-
$2,957 USD
View
B+
Retailer 4
-
$3,113 USD
View
Retailer 5
-
$3,345 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$3,439 USD
View
B+
Retailer 7
-
$3,450 USD
View
B+
Retailer 8
-
$3,467 USD
View
B+
Retailer 9
-
$3,484 USD
View
B+
Retailer 10
-
$3,550 USD
View
B+
Retailer 11
-
$3,868 USD
View
Most Expensive
B
MOH London
B313B6A2B · Nov 4
$5,544 USD
£4,365 GBP
View
11 more retailers have this diamond
Prices start from $2,508 USDSave up to $3,036 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
$2,508 USD