CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I VS1 Cushion Natural Diamond

VG • I/VS1 • GIA 1156621889

Certificate GIA 1156621889

Diamond specifications and retailer prices

From $11,360 AUD
$7,961 USD
As of November 2, 2026
Save $8,801 AUD (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,160 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1156621889. Listed at 22 retailers as of November 1, 2026, with prices from $11,360 to $20,160, a $8,801 spread on the same certified stone. MOH London lists it at $20,160. 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

1.51
Carat
I
Colour
VS1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1156621889
Dimensions6.90 × 5.90 × 4.10 mm
L/W Ratio1.17
Top View
6.90 mm5.90 mm1.51 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1156621889
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.5%

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: $20,160 AUD|Low: $11,360 AUD|High: $20,403 AUD|Avg: $14,913 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9$11,360 AUD
Retailer 6$11,501 AUD
Retailer 7$12,909 AUD
Retailer 8$12,909 AUD
Retailer 3$14,122 AUD
Retailer 5$14,190 AUD
Retailer 10$15,461 AUD
Retailer 2$15,486 AUD
Retailer 4$18,965 AUD
MOH London$20,160 AUD

44 data points across 10 retailers

22 retailers$11,360 AUD to $20,160 AUD

B+
Cheapest Retailer
-
$11,360 AUD
$7,961 USD
B+
Retailer 2
-
$11,501 AUD
$8,060 USD
View
B+
Retailer 3
-
$11,933 AUD
$8,363 USD
View
B
Retailer 4
-
$12,086 AUD
$8,470 USD
View
B
Retailer 5
-
$12,100 AUD
View
B
Retailer 6
-
$12,461 AUD
$8,733 USD
View
B
Retailer 7
-
$12,509 AUD
CA$12,176 CAD
View
B
Retailer 8
-
$12,806 AUD
$8,975 USD
View
B
Retailer 9
-
$12,909 AUD
$9,047 USD
View
Final sale: no returns
B
Retailer 10
-
$12,909 AUD
$9,047 USD
View
B
Retailer 11
-
$13,135 AUD
$9,205 USD
View
B
Retailer 12
-
$14,122 AUD
£7,793 GBP
View
Retailer 13
-
$14,190 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$14,871 AUD
$10,422 USD
View
B
Retailer 15
-
$15,211 AUD
$10,660 USD
View
B
Retailer 16
-
$15,211 AUD
$10,660 USD
View
B
Retailer 17
-
$15,461 AUD
£8,532 GBP
View
B
Retailer 18
-
$15,486 AUD
€10,336 EUR
View
B
Retailer 19
-
$15,724 AUD
$11,020 USD
View
Retailer 20
-
$16,989 AUD
$11,906 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$18,965 AUD
ZAR 214,715 ZAR
View
Most Expensive
B
MOH London
C5173A452 · Nov 1
$20,160 AUD
£11,125 GBP
View
21 more retailers have this diamond
Prices start from $11,360 AUDSave up to $8,801 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+
1.51ct Cushion
$11,360 AUD