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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

VG • I/SI1 • GIA 1235579975

Certificate GIA 1235579975

Diamond specifications and retailer prices

From €5,920 EUR
$6,640 USD
As of November 2, 2026
Save €5,198 EUR (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €11,118 EUR 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1235579975. Listed at 21 retailers as of November 1, 2026, with prices from €5,920 to €11,118, a €5,198 spread on the same certified stone. MOH London lists it at €11,118. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1235579975
Dimensions6.68 × 6.64 × 4.43 mm
L/W Ratio1.01
Top View
6.68 mm6.64 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1235579975
Side View
Table 70.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €11,118 EUR|Low: €5,560 EUR|High: €11,252 EUR|Avg: €7,785 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9€5,920 EUR
Retailer 7€5,956 EUR
Retailer 5€6,672 EUR
Retailer 8€6,672 EUR
Retailer 3€7,439 EUR
Retailer 6€7,565 EUR
Retailer 2€8,263 EUR
Retailer 4€9,801 EUR
MOH London€11,118 EUR

44 data points across 9 retailers

21 retailers€5,920 EUR to €11,118 EUR

B
Cheapest Retailer
-
€5,920 EUR
$6,640 USD
Retailer 2
-
€5,956 EUR
$6,680 USD
View
Price last confirmed 14 days ago
B
Retailer 3
-
€6,196 EUR
$6,950 USD
View
B
Retailer 4
-
€6,246 EUR
$7,006 USD
View
B
Retailer 5
-
€6,412 EUR
$7,192 USD
View
B
Retailer 6
-
€6,597 EUR
CA$10,276 CAD
View
B
Retailer 7
-
€6,656 EUR
$7,465 USD
View
B
Retailer 8
-
€6,672 EUR
$7,483 USD
View
Final sale: no returns
B
Retailer 9
-
€6,672 EUR
$7,483 USD
View
B
Retailer 10
-
€6,788 EUR
$7,614 USD
View
B
Retailer 11
-
€7,439 EUR
£6,569 GBP
View
B
Retailer 12
-
€7,458 EUR
$8,365 USD
View
Retailer 13
-
€7,565 EUR
A$13,054 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
€7,652 EUR
$8,583 USD
View
B
Retailer 15
-
€7,944 EUR
$8,910 USD
View
B
Retailer 16
-
€7,944 EUR
$8,910 USD
View
B
Retailer 17
-
€8,211 EUR
$9,210 USD
View
B
Retailer 18
-
€8,263 EUR
View
Retailer 19
-
€8,785 EUR
$9,853 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
€9,801 EUR
ZAR 177,588 ZAR
View
Most Expensive
B
MOH London
B8380E7D5 · Nov 1
€11,118 EUR
£9,819 GBP
View
20 more retailers have this diamond
Prices start from €5,920 EURSave up to €5,198 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.

B
1.51ct Cushion
€5,920 EUR