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Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 2377518025

Certificate GIA 2377518025

Diamond specifications and retailer prices

From $10,647 AUD
$7,479 USD
As of November 2, 2026
Save $8,120 AUD (43%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $18,767 AUD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2377518025. Listed at 22 retailers as of November 1, 2026, with prices from $10,647 to $18,767, a $8,120 spread on the same certified stone. MOH London lists it at $18,767. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2377518025
Dimensions6.80 × 6.27 × 4.35 mm
L/W Ratio1.08
Top View
6.80 mm6.27 mm1.50 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2377518025
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $18,767 AUD|Low: $10,014 AUD|High: $18,993 AUD|Avg: $13,723 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$10,647 AUD
Retailer 6$10,713 AUD
Retailer 7$12,017 AUD
Retailer 8$12,017 AUD
Retailer 3$13,104 AUD
Retailer 5$13,191 AUD
Retailer 2$14,925 AUD
Retailer 4$17,653 AUD
MOH London$18,767 AUD

44 data points across 9 retailers

22 retailers$10,647 AUD to $18,767 AUD

B
Cheapest Retailer
-
$10,647 AUD
$7,479 USD
B
Retailer 2
-
$10,713 AUD
$7,525 USD
View
B
Retailer 3
-
$11,188 AUD
$7,859 USD
View
B
Retailer 4
-
$11,233 AUD
View
B
Retailer 5
-
$11,251 AUD
$7,903 USD
View
B
Retailer 6
-
$11,582 AUD
$8,136 USD
View
B
Retailer 7
-
$11,722 AUD
CA$11,437 CAD
View
B
Retailer 8
-
$11,944 AUD
$8,390 USD
View
B
Retailer 9
-
$12,017 AUD
$8,441 USD
View
B
Retailer 10
-
$12,017 AUD
$8,441 USD
View
Final sale: no returns
B
Retailer 11
-
$12,226 AUD
$8,588 USD
View
B
Retailer 12
-
$13,104 AUD
£7,248 GBP
View
Retailer 13
-
$13,191 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$13,399 AUD
$9,412 USD
View
B
Retailer 15
-
$13,822 AUD
$9,709 USD
View
B
Retailer 16
-
$14,208 AUD
$9,980 USD
View
B
Retailer 17
-
$14,208 AUD
$9,980 USD
View
B
Retailer 18
-
$14,692 AUD
$10,320 USD
View
B
Retailer 19
-
$14,925 AUD
€9,985 EUR
View
Retailer 20
-
$15,818 AUD
$11,111 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$17,653 AUD
ZAR 200,325 ZAR
View
Most Expensive
B
MOH London
54379CA5C · Nov 1
$18,767 AUD
£10,380 GBP
View
21 more retailers have this diamond
Prices start from $10,647 AUDSave up to $8,120 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
$10,647 AUD