CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6555305528

Certificate GIA 6555305528

Diamond specifications and retailer prices

From €3,629 EUR
$4,070 USD
As of November 1, 2026
Save €4,065 EUR (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €7,694 EUR 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 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 €3,629 to €7,694, a €4,065 spread on the same certified stone. MOH London lists it at €7,694. 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: €7,694 EUR|Low: €3,588 EUR|High: €7,880 EUR|Avg: €4,812 EUR|-2.4%
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€3,629 EUR
Retailer 12€3,629 EUR
Retailer 18€3,826 EUR
Retailer 9€4,024 EUR
Retailer 16€4,039 EUR
Retailer 4€4,043 EUR
Retailer 6€4,076 EUR
Retailer 10€4,146 EUR
Retailer 2€4,269 EUR
Retailer 15€4,329 EUR
Retailer 11€4,342 EUR
Retailer 13€4,583 EUR
Retailer 17€4,713 EUR
Retailer 7€4,732 EUR
Retailer 14€5,465 EUR
Retailer 5€5,973 EUR
Retailer 8€7,547 EUR
MOH London€7,694 EUR

19 data points across 18 retailers

20 retailers€3,629 EUR to €7,694 EUR

A
Cheapest Retailer
-
€3,629 EUR
$4,070 USD
A
Retailer 2
-
€3,629 EUR
HK$31,800 HKD
View
B+
Retailer 3
-
€3,826 EUR
$4,291 USD
View
B+
Retailer 4
-
€4,024 EUR
$4,513 USD
View
B+
Retailer 5
-
€4,039 EUR
$4,530 USD
View
Final sale: no returns
B+
Retailer 6
-
€4,043 EUR
View
B+
Retailer 7
-
€4,076 EUR
$4,572 USD
View
B+
Retailer 8
-
€4,146 EUR
$4,650 USD
View
B+
Retailer 9
-
€4,269 EUR
A$7,366 AUD
View
B+
Retailer 10
-
€4,329 EUR
$4,855 USD
View
B+
Retailer 11
-
€4,342 EUR
$4,870 USD
View
B+
Retailer 12
-
€4,583 EUR
£4,048 GBP
View
B
Retailer 13
-
€4,710 EUR
A$8,128 AUD
View
B+
Retailer 14
-
€4,713 EUR
£4,163 GBP
View
B
Retailer 15
-
€4,732 EUR
$5,307 USD
View
Retailer 16
-
€4,925 EUR
A$8,498 AUD
View
Price last confirmed 23 days ago
B
Retailer 17
-
€5,465 EUR
View
B
Retailer 18
-
€5,973 EUR
ZAR 108,223 ZAR
View
Retailer 19
-
€7,547 EUR
$8,464 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
5528D845F · Nov 2
€7,694 EUR
£6,795 GBP
View
19 more retailers have this diamond
Prices start from €3,629 EURSave up to €4,065 EUR

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
€3,629 EUR