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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2211418341

Certificate GIA 2211418341

Diamond specifications and retailer prices

From $6,351 AUD
As of November 6, 2026
Save $5,999 AUD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $12,351 AUD 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2211418341. Listed at 15 retailers as of November 4, 2026, with prices from $6,351 to $12,351, a $5,999 spread on the same certified stone. MOH London lists it at $12,351. 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
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2211418341
Dimensions7.17 × 6.30 × 4.27 mm
L/W Ratio1.14
Culet sizeNone
Top View
7.17 mm6.30 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2211418341
Side View
Table 72.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $12,351 AUD|Low: $6,351 AUD|High: $12,534 AUD|Avg: $8,320 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$6,351 AUD
Retailer 6$6,484 AUD
Retailer 10$7,146 AUD
Retailer 8$7,377 AUD
Retailer 5$7,615 AUD
Retailer 7$7,993 AUD
Retailer 3$8,070 AUD
Retailer 2$8,955 AUD
Retailer 4$10,255 AUD
MOH London$12,351 AUD

44 data points across 10 retailers

15 retailers$6,351 AUD to $12,351 AUD

B
Cheapest Retailer
-
$6,351 AUD
B
Retailer 2
-
$6,484 AUD
View
B
Retailer 3
-
$6,567 AUD
View
B
Retailer 4
-
$6,641 AUD
View
B
Retailer 5
-
$6,724 AUD
View
B
Retailer 6
-
$7,146 AUD
View
B
Retailer 7
-
$7,377 AUD
View
Retailer 8
-
$7,615 AUD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$7,993 AUD
View
B
Retailer 10
-
$8,025 AUD
View
B
Retailer 11
-
$8,070 AUD
View
B
Retailer 12
-
$8,955 AUD
View
Retailer 13
-
$9,272 AUD
View
Price last confirmed 14 days ago
C
Retailer 14
-
$10,255 AUD
View
Most Expensive
C
MOH London
CB78CE48E · Nov 4
$12,351 AUD
£6,682 GBP
View
14 more retailers have this diamond
Prices start from $6,351 AUDSave up to $5,999 AUD

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.

B
1.50ct Cushion
$6,351 AUD