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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6551533295

Certificate GIA 6551533295

Diamond specifications and retailer prices

From €3,150 EUR
HK$27,600 HKD
As of November 1, 2026
Save €4,516 EUR (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €7,666 EUR at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551533295. Listed at 15 retailers as of October 28, 2026, with prices from €3,150 to €7,666, a €4,516 spread on the same certified stone. Queensmith lists it at €7,666. 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
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551533295
Dimensions7.61 × 5.86 × 4.02 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.61 mm5.86 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551533295
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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 1
Current: €7,666 EUR|Low: €3,127 EUR|High: €7,711 EUR|Avg: €4,551 EUR|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10€3,150 EUR
Retailer 2€3,369 EUR
Retailer 5€3,711 EUR
Retailer 3€3,884 EUR
Retailer 12€4,008 EUR
Retailer 6€4,077 EUR
Retailer 8€4,184 EUR
Retailer 11€4,208 EUR
Retailer 4€4,342 EUR
Retailer 13€4,453 EUR
Retailer 7€4,761 EUR
Retailer 9€6,702 EUR
Queensmith€7,666 EUR

24 data points across 13 retailers

15 retailers€3,150 EUR to €7,666 EUR

A
Cheapest Retailer
-
€3,150 EUR
HK$27,600 HKD
A
Retailer 2
-
€3,369 EUR
₹359,882 INR
View
A
Retailer 3
-
€3,711 EUR
SGD 5,624 SGD
View
B+
Retailer 4
-
€3,858 EUR
$4,327 USD
View
A
Retailer 5
-
€3,884 EUR
$4,356 USD
View
Final sale: no returns
B+
Retailer 6
-
€4,008 EUR
SGD 6,075 SGD
View
A
Retailer 7
-
€4,077 EUR
£3,600 GBP
View
B+
Retailer 8
-
€4,184 EUR
£3,695 GBP
View
B+
Retailer 9
-
€4,208 EUR
$4,720 USD
View
B+
Retailer 10
-
€4,322 EUR
A$7,458 AUD
View
B+
Retailer 11
-
€4,342 EUR
$4,870 USD
View
B+
Retailer 12
-
€4,453 EUR
$4,995 USD
View
B+
Retailer 13
-
€4,761 EUR
View
B
Retailer 14
-
€6,702 EUR
£5,919 GBP
View
Most Expensive
B
Queensmith
6551533295 · Oct 28
€7,666 EUR
£6,770 GBP
View
14 more retailers have this diamond
Prices start from €3,150 EURSave up to €4,516 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
€3,150 EUR