CaratHunter
Plans
Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 3485875767

Certificate GIA 3485875767

Diamond specifications and retailer prices

From $11,328 AUD
$7,939 USD
As of November 1, 2026
Save $7,567 AUD (40%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $18,895 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 3485875767. Listed at 15 retailers as of November 1, 2026, with prices from $11,328 to $18,895, a $7,567 spread on the same certified stone. MOH London lists it at $18,895. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3485875767
Dimensions6.72 × 6.36 × 4.32 mm
L/W Ratio1.06
Top View
6.72 mm6.36 mm1.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 3485875767
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $18,895 AUD|Low: $11,123 AUD|High: $19,124 AUD|Avg: $13,860 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9$11,123 AUD
Retailer 12$11,328 AUD
Retailer 10$11,378 AUD
Retailer 4$12,022 AUD
Retailer 3$12,097 AUD
Retailer 7$12,099 AUD
Retailer 5$13,223 AUD
Retailer 8$13,283 AUD
Retailer 11$13,872 AUD
Retailer 2$15,240 AUD
Retailer 6$17,774 AUD
MOH London$18,895 AUD

39 data points across 12 retailers

15 retailers$11,328 AUD to $18,895 AUD

Retailer 1
-
$11,123 AUD
$7,795 USD
Price last confirmed 12 days ago
B
Retailer 2
-
$11,328 AUD
$7,939 USD
View
B
Retailer 3
-
$11,378 AUD
$7,974 USD
View
B+
Retailer 4
-
$12,022 AUD
$8,425 USD
View
B
Retailer 5
-
$12,097 AUD
$8,478 USD
View
Final sale: no returns
B+
Retailer 6
-
$12,099 AUD
$8,479 USD
View
B
Retailer 7
-
$12,200 AUD
$8,550 USD
View
B
Retailer 8
-
$13,223 AUD
£7,297 GBP
View
Retailer 9
-
$13,283 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$13,872 AUD
$9,722 USD
View
B
Retailer 11
-
$14,455 AUD
$10,130 USD
View
B
Retailer 12
-
$15,240 AUD
€10,172 EUR
View
Retailer 13
-
$15,926 AUD
$11,161 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
$17,774 AUD
ZAR 201,235 ZAR
View
Most Expensive
B
MOH London
86B9BD96F · Nov 1
$18,895 AUD
£10,427 GBP
View
14 more retailers have this diamond
Prices start from $11,328 AUDSave up to $7,567 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.

B+
1.51ct Cushion
$11,328 AUD