CaratHunter
Plans
Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6545505052

Certificate GIA 6545505052

Diamond specifications and retailer prices

From €3,383 EUR
$3,794 USD
As of November 2, 2026
Save €3,691 EUR (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €7,074 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 H 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 6545505052. Listed at 20 retailers as of November 1, 2026, with prices from €3,383 to €7,074, a €3,691 spread on the same certified stone. MOH London lists it at €7,074. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6545505052
Dimensions6.54 × 6.46 × 4.50 mm
L/W Ratio1.01
Top View
6.54 mm6.46 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6545505052
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: €7,074 EUR|Low: €3,383 EUR|High: €7,158 EUR|Avg: €4,601 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9€3,383 EUR
Retailer 7€3,536 EUR
Retailer 10€3,807 EUR
Retailer 8€4,023 EUR
Retailer 11€4,254 EUR
Retailer 4€4,416 EUR
Retailer 6€4,477 EUR
Retailer 3€4,902 EUR
Retailer 2€5,024 EUR
Retailer 5€5,459 EUR
MOH London€7,074 EUR

44 data points across 11 retailers

20 retailers€3,383 EUR to €7,074 EUR

A
Cheapest Retailer
-
€3,383 EUR
$3,794 USD
A
Retailer 2
-
€3,470 EUR
$3,892 USD
View
A
Retailer 3
-
€3,509 EUR
$3,936 USD
View
A
Retailer 4
-
€3,536 EUR
$3,966 USD
View
Final sale: no returns
A
Retailer 5
-
€3,550 EUR
$3,981 USD
View
A
Retailer 6
-
€3,799 EUR
CA$5,918 CAD
View
A
Retailer 7
-
€3,807 EUR
$4,270 USD
View
A
Retailer 8
-
€3,915 EUR
$4,391 USD
View
B+
Retailer 9
-
€4,023 EUR
$4,512 USD
View
B+
Retailer 10
-
€4,090 EUR
$4,587 USD
View
B+
Retailer 11
-
€4,236 EUR
$4,751 USD
View
B+
Retailer 12
-
€4,254 EUR
$4,771 USD
View
B+
Retailer 13
-
€4,416 EUR
£3,900 GBP
View
Retailer 14
-
€4,477 EUR
A$7,725 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
€4,902 EUR
$5,498 USD
View
Price last confirmed 10 days ago
B+
Retailer 16
-
€5,024 EUR
View
B+
Retailer 17
-
€5,112 EUR
$5,734 USD
View
B
Retailer 18
-
€5,459 EUR
ZAR 98,910 ZAR
View
B
Retailer 19
-
€6,427 EUR
$7,209 USD
View
Most Expensive
B
MOH London
8012FE3A7 · Nov 1
€7,074 EUR
£6,247 GBP
View
19 more retailers have this diamond
Prices start from €3,383 EURSave up to €3,691 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
€3,383 EUR