Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5231995738

Certificate GIA 5231995738

Diamond specifications and retailer prices

From $2,150 USD
As of November 6, 2026
Save $2,790 USD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,940 USD at MOH London · As of November 2, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5231995738. Listed at 16 retailers as of November 2, 2026, with prices from $2,150 to $4,940, a $2,790 spread on the same certified stone. MOH London lists it at $4,940. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231995738
Dimensions7.46 × 5.72 × 4.15 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.46 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231995738
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 72.5%

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: $4,940 USD|Low: $2,112 USD|High: $5,188 USD|Avg: $3,213 USD|-4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 4$2,150 USD
Retailer 12$2,468 USD
Retailer 11$2,582 USD
Retailer 14$2,710 USD
Retailer 2$2,713 USD
Retailer 6$2,730 USD
Retailer 10$2,943 USD
Retailer 5$2,946 USD
Retailer 7$2,969 USD
Retailer 9$2,991 USD
Retailer 3$3,162 USD
Retailer 8$3,256 USD
Retailer 13$3,414 USD
Retailer 15$4,536 USD
MOH London$4,940 USD

24 data points across 15 retailers

16 retailers$2,150 USD to $4,940 USD

A
Cheapest Retailer
-
$2,150 USD
B+
Retailer 2
-
$2,468 USD
View
B+
Retailer 3
-
$2,582 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,710 USD
View
B+
Retailer 5
-
$2,713 USD
View
B+
Retailer 6
-
$2,730 USD
View
B+
Retailer 7
-
$2,943 USD
View
B+
Retailer 8
-
$2,946 USD
View
B+
Retailer 9
-
$2,969 USD
View
B+
Retailer 10
-
$2,991 USD
View
B+
Retailer 11
-
$3,118 USD
View
B+
Retailer 12
-
$3,162 USD
View
B+
Retailer 13
-
$3,256 USD
View
B+
Retailer 14
-
$3,414 USD
View
B
Retailer 15
-
$4,536 USD
View
Most Expensive
B
MOH London
0D01DAB4C · Nov 2
$4,940 USD
£3,890 GBP
View
15 more retailers have this diamond
Prices start from $2,150 USDSave up to $2,790 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
$2,150 USD