CaratHunter
Plans
Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 7546199359

Certificate GIA 7546199359

Diamond specifications and retailer prices

From $4,179 AUD
₹279,567 INR
As of November 1, 2026
Save $5,132 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,311 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546199359. Listed at 13 retailers as of November 1, 2026, with prices from $4,179 to $9,311, a $5,132 spread on the same certified stone. MOH London lists it at $9,311. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7546199359
Dimensions7.05 × 5.94 × 4.03 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.05 mm5.94 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7546199359
Side View
Table 66.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.8%

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: $9,311 AUD|Low: $4,179 AUD|High: $9,803 AUD|Avg: $5,780 AUD|-5.0%
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
November 2, 2026
Retailer 8$4,179 AUD
Retailer 6$4,369 AUD
Retailer 13$4,752 AUD
Retailer 11$4,899 AUD
Retailer 4$5,018 AUD
Retailer 2$5,147 AUD
Retailer 10$5,209 AUD
Retailer 12$5,568 AUD
Retailer 7$5,628 AUD
Retailer 3$5,914 AUD
Retailer 5$6,251 AUD
Retailer 9$6,843 AUD
MOH London$9,311 AUD

32 data points across 13 retailers

13 retailers$4,179 AUD to $9,311 AUD

A
Cheapest Retailer
-
$4,179 AUD
₹279,567 INR
A
Retailer 2
-
$4,369 AUD
$3,069 USD
View
Final sale: no returns
A
Retailer 3
-
$4,752 AUD
$3,338 USD
View
A
Retailer 4
-
$4,899 AUD
$3,441 USD
View
A
Retailer 5
-
$5,018 AUD
$3,525 USD
View
A
Retailer 6
-
$5,147 AUD
£2,847 GBP
View
A
Retailer 7
-
$5,209 AUD
$3,659 USD
View
A
Retailer 8
-
$5,568 AUD
$3,911 USD
View
A
Retailer 9
-
$5,628 AUD
£3,113 GBP
View
A
Retailer 10
-
$5,914 AUD
$4,154 USD
View
Retailer 11
-
$6,251 AUD
View
Price last confirmed 29 days ago
A
Retailer 12
-
$6,843 AUD
ZAR 77,657 ZAR
View
Most Expensive
B+
MOH London
83D8456BE · Nov 1
$9,311 AUD
£5,150 GBP
View
12 more retailers have this diamond
Prices start from $4,179 AUDSave up to $5,132 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
$4,179 AUD