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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6555305528

Certificate GIA 6555305528

Diamond specifications and retailer prices

From $7,234 NZD
$4,070 USD
As of November 1, 2026
Save $7,923 NZD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,157 NZD 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555305528. Listed at 20 retailers as of November 1, 2026, with prices from $7,234 to $15,157, a $7,923 spread on the same certified stone. MOH London lists it at $15,157. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555305528
Dimensions7.40 × 5.68 × 4.14 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.40 mm5.68 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555305528
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.8%

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: Nov 1
Current: $15,157 NZD|Low: $7,152 NZD|High: $15,708 NZD|Avg: $9,513 NZD|-3.5%
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 3$7,234 NZD
Retailer 11$7,234 NZD
Retailer 17$7,626 NZD
Retailer 9$8,021 NZD
Retailer 15$8,051 NZD
Retailer 4$8,060 NZD
Retailer 6$8,126 NZD
Retailer 10$8,264 NZD
Retailer 18$8,418 NZD
Retailer 14$8,629 NZD
Retailer 2$8,655 NZD
Retailer 12$9,137 NZD
Retailer 16$9,396 NZD
Retailer 7$9,432 NZD
Retailer 13$10,895 NZD
Retailer 5$11,906 NZD
Retailer 8$15,044 NZD
MOH London$15,157 NZD

20 data points across 18 retailers

20 retailers$7,234 NZD to $15,157 NZD

A
Cheapest Retailer
-
$7,234 NZD
$4,070 USD
A
Retailer 2
-
$7,234 NZD
HK$31,800 HKD
View
B+
Retailer 3
-
$7,626 NZD
$4,291 USD
View
B+
Retailer 4
-
$8,021 NZD
$4,513 USD
View
B+
Retailer 5
-
$8,051 NZD
$4,530 USD
View
Final sale: no returns
B+
Retailer 6
-
$8,060 NZD
€4,319 EUR
View
B+
Retailer 7
-
$8,126 NZD
$4,572 USD
View
B+
Retailer 8
-
$8,264 NZD
$4,650 USD
View
B+
Retailer 9
-
$8,418 NZD
A$7,287 AUD
View
B+
Retailer 10
-
$8,629 NZD
$4,855 USD
View
B+
Retailer 11
-
$8,655 NZD
$4,870 USD
View
B+
Retailer 12
-
$9,137 NZD
£4,048 GBP
View
B
Retailer 13
-
$9,390 NZD
A$8,128 AUD
View
B+
Retailer 14
-
$9,396 NZD
£4,163 GBP
View
B
Retailer 15
-
$9,432 NZD
$5,307 USD
View
Retailer 16
-
$9,817 NZD
A$8,498 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
$10,895 NZD
€5,838 EUR
View
B
Retailer 18
-
$11,906 NZD
ZAR 108,223 ZAR
View
Retailer 19
-
$15,044 NZD
$8,464 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
5528D845F · Nov 1
$15,157 NZD
£6,715 GBP
View
19 more retailers have this diamond
Prices start from $7,234 NZDSave up to $7,923 NZD

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
$7,234 NZD