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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 6341834366

Certificate GIA 6341834366

Diamond specifications and retailer prices

From $8,376 AUD
$5,870 USD
As of November 2, 2026
Save $7,332 AUD (47%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,708 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 I 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 6341834366. Listed at 23 retailers as of November 1, 2026, with prices from $8,376 to $15,708, a $7,332 spread on the same certified stone. MOH London lists it at $15,708. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6341834366
Dimensions6.74 × 6.48 × 4.39 mm
L/W Ratio1.04
Top View
6.74 mm6.48 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6341834366
Side View
Table 60.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $15,708 AUD|Low: $8,175 AUD|High: $15,898 AUD|Avg: $10,842 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$8,376 AUD
Retailer 7$8,497 AUD
Retailer 9$8,905 AUD
Retailer 10$9,425 AUD
Retailer 11$9,426 AUD
Retailer 8$9,505 AUD
Retailer 4$10,626 AUD
Retailer 6$10,867 AUD
Retailer 2$12,313 AUD
Retailer 5$13,847 AUD
MOH London$15,708 AUD

43 data points across 11 retailers

23 retailers$8,376 AUD to $15,708 AUD

B+
Cheapest Retailer
-
$8,376 AUD
$5,870 USD
Retailer 2
-
$8,497 AUD
$5,955 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$8,730 AUD
$6,118 USD
View
B
Retailer 4
-
$8,757 AUD
View
B
Retailer 5
-
$8,905 AUD
$6,241 USD
View
B
Retailer 6
-
$9,029 AUD
$6,328 USD
View
B
Retailer 7
-
$9,425 AUD
$6,605 USD
View
Final sale: no returns
B
Retailer 8
-
$9,426 AUD
$6,606 USD
View
B
Retailer 9
-
$9,446 AUD
$6,620 USD
View
B
Retailer 10
-
$9,505 AUD
$6,661 USD
View
B
Retailer 11
-
$10,035 AUD
$7,033 USD
View
B
Retailer 12
-
$10,367 AUD
View
B
Retailer 13
-
$10,401 AUD
$7,289 USD
View
B
Retailer 14
-
$10,626 AUD
£5,864 GBP
View
B
Retailer 15
-
$10,652 AUD
CA$10,368 CAD
View
Retailer 16
-
$10,867 AUD
View
Price last confirmed 11 days ago
B
Retailer 17
-
$11,130 AUD
$7,800 USD
View
B
Retailer 18
-
$11,130 AUD
$7,800 USD
View
B
Retailer 19
-
$11,501 AUD
$8,060 USD
View
B
Retailer 20
-
$12,313 AUD
€8,218 EUR
View
Retailer 21
-
$12,417 AUD
$8,702 USD
View
Price last confirmed 10 days ago
B
Retailer 22
-
$13,847 AUD
ZAR 156,770 ZAR
View
Most Expensive
B
MOH London
3474A897C · Nov 1
$15,708 AUD
£8,668 GBP
View
22 more retailers have this diamond
Prices start from $8,376 AUDSave up to $7,332 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
$8,376 AUD