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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 €3,162 EUR
HK$27,600 HKD
As of November 1, 2026
Save €4,534 EUR (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €7,696 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 €3,162 to €7,696, a €4,534 spread on the same certified stone. Queensmith lists it at €7,696. 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
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: €7,696 EUR|Low: €3,139 EUR|High: €7,741 EUR|Avg: €4,567 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€3,162 EUR
Retailer 8€3,383 EUR
Retailer 5€3,725 EUR
Retailer 3€3,899 EUR
Retailer 12€4,024 EUR
Retailer 2€4,093 EUR
Retailer 7€4,201 EUR
Retailer 11€4,225 EUR
Retailer 4€4,359 EUR
Retailer 13€4,471 EUR
Retailer 6€4,780 EUR
Retailer 9€6,729 EUR
Queensmith€7,696 EUR

24 data points across 13 retailers

15 retailers€3,162 EUR to €7,696 EUR

A
Cheapest Retailer
-
€3,162 EUR
HK$27,600 HKD
A
Retailer 2
-
€3,383 EUR
₹359,999 INR
View
A
Retailer 3
-
€3,725 EUR
SGD 5,624 SGD
View
B+
Retailer 4
-
€3,873 EUR
$4,327 USD
View
A
Retailer 5
-
€3,899 EUR
$4,356 USD
View
Final sale: no returns
B+
Retailer 6
-
€4,024 EUR
SGD 6,075 SGD
View
A
Retailer 7
-
€4,093 EUR
£3,600 GBP
View
B+
Retailer 8
-
€4,201 EUR
£3,695 GBP
View
B+
Retailer 9
-
€4,225 EUR
$4,720 USD
View
B+
Retailer 10
-
€4,339 EUR
A$7,458 AUD
View
B+
Retailer 11
-
€4,359 EUR
$4,870 USD
View
B+
Retailer 12
-
€4,471 EUR
$4,995 USD
View
B+
Retailer 13
-
€4,780 EUR
View
B
Retailer 14
-
€6,729 EUR
£5,919 GBP
View
Most Expensive
B
Queensmith
6551533295 · Oct 28
€7,696 EUR
£6,770 GBP
View
14 more retailers have this diamond
Prices start from €3,162 EURSave up to €4,534 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
€3,162 EUR