CaratHunter
Plans
Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

ID • D/SI1 • GIA 6555094950

Certificate GIA 6555094950

Diamond specifications and retailer prices

From €4,743 EUR
HK$41,400 HKD
As of November 1, 2026
Save €4,624 EUR (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €9,367 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555094950. Listed at 18 retailers as of October 28, 2026, with prices from €4,743 to €9,367, a €4,624 spread on the same certified stone. Queensmith lists it at €9,367. 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
D
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555094950
Dimensions7.66 × 5.89 × 4.00 mm
L/W Ratio1.30
Top View
7.66 mm5.89 mm1.51 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555094950
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.9%

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: €9,367 EUR|Low: €4,709 EUR|High: €9,492 EUR|Avg: €6,670 EUR|+1.2%
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 1, 2026
Retailer 9€4,743 EUR
Retailer 2€5,056 EUR
Retailer 3€5,288 EUR
Retailer 5€5,590 EUR
Retailer 11€5,778 EUR
Retailer 7€6,004 EUR
Retailer 12€6,131 EUR
Retailer 4€6,139 EUR
Retailer 13€6,404 EUR
Retailer 10€6,840 EUR
Retailer 8€7,691 EUR
Retailer 6€9,223 EUR
Queensmith€9,367 EUR

27 data points across 13 retailers

18 retailers€4,743 EUR to €9,367 EUR

A
Cheapest Retailer
-
€4,743 EUR
HK$41,400 HKD
A
Retailer 2
-
€5,056 EUR
₹537,956 INR
View
A
Retailer 3
-
€5,288 EUR
$5,908 USD
View
Retailer 4
-
€5,447 EUR
SGD 8,224 SGD
View
Price last confirmed 17 days ago
A
Retailer 5
-
€5,590 EUR
SGD 8,439 SGD
View
A
Retailer 6
-
€5,778 EUR
$6,455 USD
View
Final sale: no returns
B+
Retailer 7
-
€5,812 EUR
$6,493 USD
View
B+
Retailer 8
-
€5,814 EUR
$6,495 USD
View
Retailer 9
-
€5,874 EUR
$6,563 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
€6,004 EUR
£5,281 GBP
View
B+
Retailer 11
-
€6,131 EUR
$6,850 USD
View
Retailer 12
-
€6,139 EUR
A$10,551 AUD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
€6,404 EUR
$7,154 USD
View
B+
Retailer 14
-
€6,637 EUR
A$11,408 AUD
View
B+
Retailer 15
-
€6,840 EUR
View
B+
Retailer 16
-
€7,691 EUR
ZAR 138,816 ZAR
View
B
Retailer 17
-
€9,223 EUR
£8,113 GBP
View
Most Expensive
B
Queensmith
6555094950 · Oct 28
€9,367 EUR
£8,240 GBP
View
17 more retailers have this diamond
Prices start from €4,743 EURSave up to €4,624 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
€4,743 EUR