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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

VG • E/SI2 • GIA 6551945817

Certificate GIA 6551945817

Diamond specifications and retailer prices

From $7,802 AUD
As of October 29, 2026
Save $6,262 AUD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $14,064 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551945817. Listed at 12 retailers as of October 29, 2026, with prices from $7,802 to $14,064, a $6,262 spread on the same certified stone. MOH London lists it at $14,064. 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
E
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.15°
Pavilion angle34.84°
OriginNatural
Grading LabGIA
CertificateGIA 6551945817
Dimensions7.71 × 5.94 × 4.03 mm
L/W Ratio1.30
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Cavity, Needle
Top View
7.71 mm5.94 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551945817
Side View
Table 61.0%Crown 38.15°Girdle: STK-THKPavilion 34.84°Culet: NDepth 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: Oct 29
Current: $14,064 AUD|Low: $6,884 AUD|High: $14,158 AUD|Avg: $9,675 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$8,569 AUD
Retailer 5$8,764 AUD
Retailer 4$8,765 AUD
Retailer 2$8,974 AUD
Retailer 3$9,107 AUD
Retailer 6$9,746 AUD
MOH London$14,064 AUD

44 data points across 7 retailers

12 retailers$7,802 AUD to $14,064 AUD

A
Cheapest Retailer
-
$7,802 AUD
A
Retailer 2
-
$8,035 AUD
$5,645 USD
View
B+
Retailer 3
-
$8,280 AUD
$5,817 USD
View
B+
Retailer 4
-
$8,569 AUD
$6,020 USD
View
B+
Retailer 5
-
$8,764 AUD
$6,157 USD
View
Final sale: no returns
B+
Retailer 6
-
$8,765 AUD
$6,158 USD
View
B+
Retailer 7
-
$8,778 AUD
View
B+
Retailer 8
-
$8,974 AUD
£4,964 GBP
View
B+
Retailer 9
-
$9,107 AUD
£5,038 GBP
View
B+
Retailer 10
-
$9,722 AUD
$6,830 USD
View
B+
Retailer 11
-
$9,746 AUD
$6,847 USD
View
Most Expensive
B
MOH London
21BB59F67 · Oct 29
$14,064 AUD
£7,780 GBP
View
11 more retailers have this diamond
Prices start from $7,802 AUDSave up to $6,262 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
$7,802 AUD