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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 3555384405

Certificate GIA 3555384405

Diamond specifications and retailer prices

From $6,373 AUD
$4,466 USD
As of November 1, 2026
Save $7,367 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,739 AUD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555384405. Listed at 20 retailers as of October 26, 2026, with prices from $6,373 to $13,739, a $7,367 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,739. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555384405
Dimensions7.46 × 5.94 × 4.06 mm
L/W Ratio1.26
Girdle conditionFaceted
Top View
7.46 mm5.94 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555384405
Side View
Table 68.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 68.4%

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: $7,217 AUD|Low: $6,356 AUD|High: $14,327 AUD|Avg: $8,864 AUD|-3.6%
Retailer 1
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
Retailer 19
Retailer 20
Retailer 21
Wholesale Diamonds Direct
November 2, 2026
Retailer 6$6,373 AUD
Retailer 18$6,429 AUD
Retailer 5$6,775 AUD
Retailer 1$7,217 AUD
Retailer 3$7,240 AUD
Retailer 10$7,270 AUD
Retailer 9$7,426 AUD
Retailer 15$7,545 AUD
Retailer 8$7,591 AUD
Retailer 2$7,624 AUD
Retailer 16$7,748 AUD
Retailer 4$8,071 AUD
Retailer 19$8,157 AUD
Retailer 17$8,302 AUD
Retailer 13$9,360 AUD
Retailer 14$9,360 AUD
Retailer 20$9,458 AUD
Retailer 11$9,674 AUD
Retailer 21$10,145 AUD
Retailer 7$10,511 AUD
Retailer 12$12,756 AUD
Wholesale Diamonds Direct$13,739 AUD

11 data points across 22 retailers

20 retailers$6,373 AUD to $13,739 AUD

A
Cheapest Retailer
-
$6,373 AUD
$4,466 USD
A
Retailer 2
-
$6,429 AUD
HK$35,200 HKD
View
B+
Retailer 3
-
$6,775 AUD
$4,748 USD
View
B+
Retailer 4
-
$7,217 AUD
€4,817 EUR
View
B+
Retailer 5
-
$7,240 AUD
$5,074 USD
View
Final sale: no returns
B+
Retailer 6
-
$7,270 AUD
$5,095 USD
View
B+
Retailer 7
-
$7,426 AUD
$5,204 USD
View
B+
Retailer 8
-
$7,496 AUD
$5,253 USD
View
B+
Retailer 9
-
$7,545 AUD
View
B+
Retailer 10
-
$7,591 AUD
$5,320 USD
View
B+
Retailer 11
-
$7,624 AUD
$5,343 USD
View
B+
Retailer 12
-
$7,748 AUD
$5,430 USD
View
B+
Retailer 13
-
$8,071 AUD
£4,454 GBP
View
B+
Retailer 14
-
$8,157 AUD
£4,501 GBP
View
B+
Retailer 15
-
$8,302 AUD
$5,818 USD
View
B+
Retailer 16
-
$9,458 AUD
€6,313 EUR
View
B
Retailer 17
-
$10,145 AUD
$7,110 USD
View
B
Retailer 18
-
$10,511 AUD
ZAR 118,999 ZAR
View
B
Retailer 19
-
$12,756 AUD
£7,039 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
596132979 · Oct 26
$13,739 AUD
$9,629 USD
View
19 more retailers have this diamond
Prices start from $6,373 AUDSave up to $7,367 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
$6,373 AUD