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Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 1565039153

Certificate GIA 1565039153

Diamond specifications and retailer prices

From $7,635 AUD
HK$41,900 HKD
As of November 1, 2026
Save $6,764 AUD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,399 AUD at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1565039153. Listed at 12 retailers as of October 29, 2026, with prices from $7,635 to $14,399, a $6,764 spread on the same certified stone. MOH London lists it at $14,399. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1565039153
Dimensions8.43 × 6.01 × 4.15 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather, Indented Natural, Natural
Top View
8.43 mm6.01 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1565039153
Side View
Table 59.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 69.0%

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: $14,399 AUD|Low: $7,562 AUD|High: $15,662 AUD|Avg: $9,924 AUD|-8.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2$7,635 AUD
Retailer 7$8,040 AUD
Retailer 11$8,695 AUD
Retailer 3$8,952 AUD
Retailer 9$8,963 AUD
Retailer 10$9,484 AUD
Retailer 8$9,485 AUD
Retailer 5$9,740 AUD
Retailer 4$9,824 AUD
Retailer 6$11,212 AUD
MOH London$14,399 AUD

30 data points across 11 retailers

12 retailers$7,635 AUD to $14,399 AUD

A
Cheapest Retailer
-
$7,635 AUD
HK$41,900 HKD
A
Retailer 2
-
$8,040 AUD
₹537,851 INR
View
A
Retailer 3
-
$8,695 AUD
$6,108 USD
View
Retailer 4
-
$8,952 AUD
SGD 8,498 SGD
View
Price last confirmed 18 days ago
B+
Retailer 5
-
$8,963 AUD
$6,296 USD
View
B+
Retailer 6
-
$9,484 AUD
$6,662 USD
View
Final sale: no returns
Retailer 7
-
$9,485 AUD
$6,663 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$9,740 AUD
£5,387 GBP
View
B+
Retailer 9
-
$9,824 AUD
£5,434 GBP
View
B+
Retailer 10
-
$11,212 AUD
€7,501 EUR
View
B
Retailer 11
-
$11,620 AUD
View
Most Expensive
B
MOH London
5B2EAC664 · Oct 29
$14,399 AUD
£7,964 GBP
View
11 more retailers have this diamond
Prices start from $7,635 AUDSave up to $6,764 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
$7,635 AUD