Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

GD • K/SI2 • GIA 6552178766

Certificate GIA 6552178766

Diamond specifications and retailer prices

From $1,802 USD
As of November 6, 2026
Save $2,352 USD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,154 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6552178766. Listed at 11 retailers as of November 4, 2026, with prices from $1,802 to $4,154, a $2,352 spread on the same certified stone. MOH London lists it at $4,154. 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
K
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552178766
Dimensions7.60 × 5.97 × 4.16 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Cavity, Needle
Top View
7.60 mm5.97 mm1.50 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552178766
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $4,154 USD|Low: $1,802 USD|High: $4,188 USD|Avg: $2,685 USD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$1,802 USD
Retailer 3$2,369 USD
Retailer 5$2,515 USD
Retailer 4$2,952 USD
MOH London$4,154 USD

29 data points across 5 retailers

11 retailers$1,802 USD to $4,154 USD

A
Cheapest Retailer
-
$1,802 USD
B+
Retailer 2
-
$2,147 USD
View
B+
Retailer 3
-
$2,344 USD
View
B+
Retailer 4
-
$2,369 USD
View
Retailer 5
-
$2,378 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$2,515 USD
View
B+
Retailer 7
-
$2,563 USD
View
B+
Retailer 8
-
$2,581 USD
View
Retailer 9
-
$2,770 USD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$2,952 USD
View
Most Expensive
B
MOH London
537817708 · Nov 4
$4,154 USD
£3,271 GBP
View
10 more retailers have this diamond
Prices start from $1,802 USDSave up to $2,352 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
$1,802 USD