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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1425256232

Certificate GIA 1425256232

Diamond specifications and retailer prices

From €4,128 EUR
$4,630 USD
As of November 2, 2026
Save €3,943 EUR (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €8,071 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1425256232. Listed at 20 retailers as of November 1, 2026, with prices from €4,128 to €8,071, a €3,943 spread on the same certified stone. MOH London lists it at €8,071. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425256232
Dimensions6.16 × 6.04 × 4.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.16 mm6.04 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425256232
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 76.4%

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 2
Current: €8,071 EUR|Low: €3,969 EUR|High: €8,168 EUR|Avg: €5,387 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 9€4,128 EUR
Retailer 5€4,364 EUR
Retailer 7€4,366 EUR
Retailer 10€4,645 EUR
Retailer 6€4,963 EUR
Retailer 2€5,256 EUR
Retailer 8€5,444 EUR
Retailer 3€5,985 EUR
Retailer 4€6,731 EUR
MOH London€8,071 EUR

45 data points across 10 retailers

20 retailers€4,128 EUR to €8,071 EUR

A
Cheapest Retailer
-
€4,128 EUR
$4,630 USD
A
Retailer 2
-
€4,280 EUR
$4,800 USD
View
A
Retailer 3
-
€4,329 EUR
$4,855 USD
View
A
Retailer 4
-
€4,364 EUR
$4,895 USD
View
A
Retailer 5
-
€4,366 EUR
$4,897 USD
View
Final sale: no returns
A
Retailer 6
-
€4,384 EUR
$4,917 USD
View
A
Retailer 7
-
€4,618 EUR
CA$7,195 CAD
View
A
Retailer 8
-
€4,645 EUR
$5,210 USD
View
B+
Retailer 9
-
€4,661 EUR
$5,228 USD
View
B+
Retailer 10
-
€4,904 EUR
$5,500 USD
View
B+
Retailer 11
-
€4,963 EUR
$5,567 USD
View
B+
Retailer 12
-
€5,232 EUR
$5,868 USD
View
B+
Retailer 13
-
€5,256 EUR
£4,642 GBP
View
Retailer 14
-
€5,444 EUR
A$9,394 AUD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
€5,985 EUR
View
Retailer 16
-
€6,041 EUR
$6,776 USD
View
Price last confirmed 11 days ago
B
Retailer 17
-
€6,205 EUR
$6,960 USD
View
B+
Retailer 18
-
€6,731 EUR
ZAR 121,964 ZAR
View
Retailer 19
-
€7,938 EUR
$8,903 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
C97E3DB6C · Nov 1
€8,071 EUR
£7,128 GBP
View
19 more retailers have this diamond
Prices start from €4,128 EURSave up to €3,943 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
€4,128 EUR