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Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5426823638

Certificate GIA 5426823638

Diamond specifications and retailer prices

From €2,396 EUR
$2,677 USD
As of October 31, 2026
Save €7,278 EUR (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €9,674 EUR at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5426823638. Listed at 9 retailers as of October 26, 2026, with prices from €2,396 to €9,674, a €7,278 spread on the same certified stone. Wholesale Diamonds Direct lists it at €9,674. 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

1.50
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5426823638
Dimensions7.31 × 7.27 × 4.55 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.31 mm7.27 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5426823638
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €5,009 EUR|Low: €2,396 EUR|High: €9,674 EUR|Avg: €5,685 EUR|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 23, 2026
Retailer 6€2,396 EUR
Retailer 5€2,488 EUR
Retailer 8€4,475 EUR
Retailer 3€4,615 EUR
Retailer 4€4,629 EUR
Retailer 1€5,009 EUR
Retailer 2€5,714 EUR
Retailer 7€6,073 EUR
Retailer 12€6,393 EUR
Retailer 10€6,498 EUR
Retailer 11€6,498 EUR
Retailer 9€6,713 EUR
Wholesale Diamonds Direct€9,674 EUR

9 data points across 13 retailers

9 retailers€2,396 EUR to €9,674 EUR

A
Cheapest Retailer
-
€2,396 EUR
$2,677 USD
A
Retailer 2
-
€2,488 EUR
$2,780 USD
View
Retailer 3
-
€4,475 EUR
$4,999 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
€5,009 EUR
$5,596 USD
View
B+
Retailer 5
-
€6,073 EUR
$6,785 USD
View
B
Retailer 6
-
€6,498 EUR
$7,260 USD
View
B
Retailer 7
-
€6,498 EUR
$7,260 USD
View
B
Retailer 8
-
€6,713 EUR
$7,500 USD
View
Most Expensive
B
Wholesale Diamonds Direct
581904020 · Oct 26
€9,674 EUR
$10,808 USD
View
8 more retailers have this diamond
Prices start from €2,396 EURSave up to €7,278 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
1.50ct Round
€2,396 EUR