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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 5242081367

Certificate GIA 5242081367

Diamond specifications and retailer prices

From €2,442 EUR
HK$21,400 HKD
As of November 2, 2026
Save €3,374 EUR (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €5,817 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242081367. Listed at 22 retailers as of November 2, 2026, with prices from €2,442 to €5,817, a €3,374 spread on the same certified stone. MOH London lists it at €5,817. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242081367
Dimensions6.70 × 6.32 × 4.35 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
6.70 mm6.32 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242081367
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.8%

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 2
Current: €5,817 EUR|Low: €2,282 EUR|High: €5,817 EUR|Avg: €3,344 EUR|+3.1%
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
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 15€2,442 EUR
Retailer 10€2,492 EUR
Retailer 6€2,602 EUR
Retailer 8€2,622 EUR
Retailer 4€2,797 EUR
Retailer 5€2,798 EUR
Retailer 2€2,838 EUR
Retailer 7€2,871 EUR
Retailer 19€2,908 EUR
Retailer 18€2,959 EUR
Retailer 21€3,014 EUR
Retailer 20€3,131 EUR
Retailer 12€3,197 EUR
Retailer 16€3,300 EUR
Retailer 11€3,348 EUR
Retailer 13€3,573 EUR
Retailer 14€3,602 EUR
Retailer 17€3,922 EUR
Retailer 3€4,205 EUR
Retailer 9€5,059 EUR
MOH London€5,817 EUR

21 data points across 21 retailers

22 retailers€2,442 EUR to €5,817 EUR

A
Cheapest Retailer
-
€2,442 EUR
HK$21,400 HKD
A
Retailer 2
-
€2,492 EUR
$2,795 USD
View
A
Retailer 3
-
€2,602 EUR
$2,919 USD
View
A
Retailer 4
-
€2,622 EUR
$2,941 USD
View
A
Retailer 5
-
€2,797 EUR
$3,137 USD
View
A
Retailer 6
-
€2,798 EUR
$3,138 USD
View
A
Retailer 7
-
€2,838 EUR
View
A
Retailer 8
-
€2,871 EUR
$3,220 USD
View
A
Retailer 9
-
€2,908 EUR
$3,262 USD
View
Final sale: no returns
A
Retailer 10
-
€2,959 EUR
$3,319 USD
View
A
Retailer 11
-
€3,014 EUR
$3,380 USD
View
A
Retailer 12
-
€3,131 EUR
£2,765 GBP
View
Retailer 13
-
€3,197 EUR
SGD 4,846 SGD
View
Price last confirmed 14 days ago
Retailer 14
-
€3,294 EUR
View
Price last confirmed 14 days ago
A
Retailer 15
-
€3,300 EUR
£2,915 GBP
View
A
Retailer 16
-
€3,573 EUR
$4,008 USD
View
Retailer 17
-
€3,602 EUR
A$6,216 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
€3,922 EUR
View
B+
Retailer 19
-
€4,205 EUR
ZAR 76,198 ZAR
View
Retailer 20
-
€4,934 EUR
$5,534 USD
View
Price last confirmed 14 days ago
B+
Retailer 21
-
€5,059 EUR
$5,674 USD
View
Most Expensive
B
MOH London
83C7A565F · Nov 2
€5,817 EUR
£5,137 GBP
View
21 more retailers have this diamond
Prices start from €2,442 EURSave up to €3,374 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
€2,442 EUR