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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 $4,466 USD
As of November 1, 2026
Save $5,163 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,629 USD 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 $4,466 to $9,629, a $5,163 spread on the same certified stone. Wholesale Diamonds Direct lists it at $9,629. 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
Color
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: $4,506 USD|Low: $4,454 USD|High: $10,041 USD|Avg: $6,206 USD|-8.6%
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 3$4,466 USD
Retailer 1$4,506 USD
Retailer 20$4,748 USD
Retailer 5$5,006 USD
Retailer 18$5,074 USD
Retailer 10$5,095 USD
Retailer 9$5,204 USD
Retailer 2$5,231 USD
Retailer 7$5,320 USD
Retailer 17$5,343 USD
Retailer 21$5,370 USD
Retailer 19$5,656 USD
Retailer 12$5,717 USD
Retailer 8$6,023 USD
Retailer 13$6,560 USD
Retailer 14$6,560 USD
Retailer 15$6,629 USD
Retailer 11$6,780 USD
Retailer 16$7,110 USD
Retailer 6$7,366 USD
Retailer 4$8,833 USD
Wholesale Diamonds Direct$9,629 USD

11 data points across 22 retailers

20 retailers$4,466 USD to $9,629 USD

A
Cheapest Retailer
-
$4,466 USD
A
Retailer 2
-
$4,506 USD
HK$35,200 HKD
View
B+
Retailer 3
-
$4,748 USD
View
B+
Retailer 4
-
$5,006 USD
€4,767 EUR
View
B+
Retailer 5
-
$5,074 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,095 USD
View
B+
Retailer 7
-
$5,204 USD
View
B+
Retailer 8
-
$5,231 USD
A$8,047 AUD
View
B+
Retailer 9
-
$5,253 USD
View
B+
Retailer 10
-
$5,320 USD
View
B+
Retailer 11
-
$5,343 USD
View
B+
Retailer 12
-
$5,370 USD
View
B+
Retailer 13
-
$5,656 USD
£4,454 GBP
View
B+
Retailer 14
-
$5,717 USD
£4,501 GBP
View
B
Retailer 15
-
$6,023 USD
View
B+
Retailer 16
-
$6,629 USD
€6,313 EUR
View
B
Retailer 17
-
$7,110 USD
View
B
Retailer 18
-
$7,366 USD
ZAR 118,999 ZAR
View
B
Retailer 19
-
$8,833 USD
£6,955 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
596132979 · Oct 26
$9,629 USD
View
19 more retailers have this diamond
Prices start from $4,466 USDSave up to $5,163 USD

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
$4,466 USD