CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • GIA 1543744676

Certificate GIA 1543744676

Diamond specifications and retailer prices

From $3,178 AUD
HK$17,400 HKD
As of November 1, 2026
Save $3,819 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,997 AUD at MOH London · As of November 2, 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1543744676. Listed at 17 retailers as of November 1, 2026, with prices from $3,178 to $6,997, a $3,819 spread on the same certified stone. MOH London lists it at $6,997. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543744676
Dimensions6.53 × 6.29 × 4.28 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
6.53 mm6.29 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543744676
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 68.1%

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 1
Current: $6,997 AUD|Low: $3,123 AUD|High: $7,033 AUD|Avg: $4,208 AUD|-0.0%
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
Retailer 16
November 2, 2026
Retailer 11$3,178 AUD
Retailer 2$3,238 AUD
Retailer 14$3,393 AUD
Retailer 4$3,416 AUD
Retailer 8$3,499 AUD
Retailer 6$3,569 AUD
Retailer 3$3,818 AUD
Retailer 13$4,024 AUD
Retailer 16$4,024 AUD
Retailer 9$4,080 AUD
Retailer 15$4,167 AUD
Retailer 10$4,473 AUD
Retailer 5$4,859 AUD
Retailer 12$4,898 AUD
Retailer 7$5,124 AUD
MOH London$6,997 AUD

28 data points across 16 retailers

17 retailers$3,178 AUD to $6,997 AUD

A
Cheapest Retailer
-
$3,178 AUD
HK$17,400 HKD
A
Retailer 2
-
$3,238 AUD
$2,269 USD
View
A
Retailer 3
-
$3,393 AUD
$2,378 USD
View
A
Retailer 4
-
$3,416 AUD
$2,394 USD
View
B+
Retailer 5
-
$3,499 AUD
$2,452 USD
View
Final sale: no returns
A
Retailer 6
-
$3,516 AUD
View
A
Retailer 7
-
$3,569 AUD
$2,501 USD
View
A
Retailer 8
-
$3,818 AUD
$2,676 USD
View
A
Retailer 9
-
$4,024 AUD
$2,820 USD
View
A
Retailer 10
-
$4,024 AUD
$2,820 USD
View
A
Retailer 11
-
$4,080 AUD
£2,252 GBP
View
A
Retailer 12
-
$4,167 AUD
$2,920 USD
View
A
Retailer 13
-
$4,473 AUD
£2,468 GBP
View
Retailer 14
-
$4,859 AUD
$3,405 USD
View
Price last confirmed 10 days ago
B+
Retailer 15
-
$4,898 AUD
€3,269 EUR
View
B+
Retailer 16
-
$5,124 AUD
$3,591 USD
View
Most Expensive
B+
MOH London
7B9939E26 · Nov 2
$6,997 AUD
£3,861 GBP
View
16 more retailers have this diamond
Prices start from $3,178 AUDSave up to $3,819 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.

A
1.51ct Cushion
$3,178 AUD