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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6555110792

Certificate GIA 6555110792

Diamond specifications and retailer prices

From $4,877 AUD
HK$26,700 HKD
As of November 1, 2026
Save $5,494 AUD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,371 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555110792. Listed at 20 retailers as of November 1, 2026, with prices from $4,877 to $10,371, a $5,494 spread on the same certified stone. MOH London lists it at $10,371. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555110792
Dimensions6.51 × 6.48 × 4.41 mm
L/W Ratio1.00
Top View
6.51 mm6.48 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555110792
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: 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: $10,371 AUD|Low: $4,709 AUD|High: $10,496 AUD|Avg: $6,533 AUD|-0.9%
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 14$4,877 AUD
Retailer 16$4,971 AUD
Retailer 15$5,080 AUD
Retailer 7$5,445 AUD
Retailer 9$5,615 AUD
Retailer 4$5,833 AUD
Retailer 5$5,900 AUD
Retailer 2$6,093 AUD
Retailer 3$6,178 AUD
Retailer 17$6,178 AUD
Retailer 18$6,393 AUD
Retailer 12$6,475 AUD
Retailer 8$6,565 AUD
Retailer 10$7,363 AUD
Retailer 11$7,368 AUD
Retailer 6$7,571 AUD
Retailer 13$8,005 AUD
MOH London$10,371 AUD

29 data points across 18 retailers

20 retailers$4,877 AUD to $10,371 AUD

A
Cheapest Retailer
-
$4,877 AUD
HK$26,700 HKD
A
Retailer 2
-
$4,971 AUD
$3,484 USD
View
A
Retailer 3
-
$5,080 AUD
$3,560 USD
View
A
Retailer 4
-
$5,192 AUD
$3,639 USD
View
A
Retailer 5
-
$5,281 AUD
$3,701 USD
View
B+
Retailer 6
-
$5,445 AUD
$3,816 USD
View
Final sale: no returns
A
Retailer 7
-
$5,615 AUD
$3,935 USD
View
A
Retailer 8
-
$5,833 AUD
$4,088 USD
View
A
Retailer 9
-
$5,900 AUD
$4,135 USD
View
A
Retailer 10
-
$6,093 AUD
£3,362 GBP
View
A
Retailer 11
-
$6,178 AUD
$4,330 USD
View
A
Retailer 12
-
$6,178 AUD
$4,330 USD
View
A
Retailer 13
-
$6,393 AUD
$4,480 USD
View
A
Retailer 14
-
$6,475 AUD
£3,573 GBP
View
Retailer 15
-
$6,565 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
$7,363 AUD
$5,160 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
$7,368 AUD
€4,918 EUR
View
B+
Retailer 18
-
$7,571 AUD
$5,306 USD
View
B+
Retailer 19
-
$8,005 AUD
ZAR 90,626 ZAR
View
Most Expensive
B
MOH London
98AE5D049 · Nov 2
$10,371 AUD
£5,723 GBP
View
19 more retailers have this diamond
Prices start from $4,877 AUDSave up to $5,494 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
$4,877 AUD