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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2235864871

Certificate GIA 2235864871

Diamond specifications and retailer prices

From €5,059 EUR
As of November 4, 2026
Save €5,650 EUR (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €10,709 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 2235864871. Listed at 17 retailers as of November 4, 2026, with prices from €5,059 to €10,709, a €5,650 spread on the same certified stone. NZ Jewellers lists it at €10,709. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2235864871
Dimensions7.30 × 7.26 × 4.58 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.30 mm7.26 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235864871
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €10,709 EUR|Low: €4,907 EUR|High: €10,709 EUR|Avg: €7,011 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9€5,353 EUR
Retailer 3€5,800 EUR
Retailer 10€5,800 EUR
Retailer 11€5,800 EUR
Retailer 5€6,039 EUR
Retailer 2€6,210 EUR
Retailer 6€6,580 EUR
Retailer 12€6,693 EUR
Retailer 4€7,633 EUR
Retailer 7€8,899 EUR
Retailer 8€9,283 EUR
NZ Jewellers€10,709 EUR

40 data points across 12 retailers

17 retailers€5,059 EUR to €10,709 EUR

B+
Cheapest Retailer
-
€5,059 EUR
B+
Retailer 2
-
€5,254 EUR
View
B+
Retailer 3
-
€5,353 EUR
View
Final sale: no returns
B+
Retailer 4
-
€5,800 EUR
View
Retailer 5
-
€5,800 EUR
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€5,800 EUR
View
B+
Retailer 7
-
€5,908 EUR
View
B+
Retailer 8
-
€6,039 EUR
View
B+
Retailer 9
-
€6,210 EUR
View
B
Retailer 10
-
€6,449 EUR
View
B
Retailer 11
-
€6,449 EUR
View
B
Retailer 12
-
€6,580 EUR
View
B
Retailer 13
-
€6,664 EUR
View
B
Retailer 14
-
€6,693 EUR
View
B
Retailer 15
-
€8,899 EUR
View
B
Retailer 16
-
€9,283 EUR
View
Most Expensive
B
NZ Jewellers
6cca4859-36cc-4e7e-8995-258bec1d02d7 · Nov 5
€10,709 EUR
$11,956 USD
View
16 more retailers have this diamond
Prices start from €5,059 EURSave up to €5,650 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.

B+
1.51ct Round
€5,059 EUR