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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6492695970

Certificate GIA 6492695970

Diamond specifications and retailer prices

From €4,689 EUR
As of November 4, 2026
Save €5,678 EUR (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €10,367 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 6492695970. Listed at 18 retailers as of November 4, 2026, with prices from €4,689 to €10,367, a €5,678 spread on the same certified stone. NZ Jewellers lists it at €10,367. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6492695970
Dimensions7.45 × 7.42 × 4.48 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.45 mm7.42 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6492695970
Side View
Table 58.0%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.4%

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 4
Current: €10,367 EUR|Low: €4,500 EUR|High: €10,367 EUR|Avg: €6,245 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 10€4,689 EUR
Retailer 14€4,760 EUR
Retailer 12€4,897 EUR
Retailer 5€5,184 EUR
Retailer 3€5,533 EUR
Retailer 6€5,616 EUR
Retailer 11€5,616 EUR
Retailer 13€5,616 EUR
Retailer 2€5,847 EUR
Retailer 8€6,348 EUR
Retailer 7€6,417 EUR
Retailer 4€6,833 EUR
Retailer 9€9,107 EUR
NZ Jewellers€10,367 EUR

43 data points across 14 retailers

18 retailers€4,689 EUR to €10,367 EUR

A
Cheapest Retailer
-
€4,689 EUR
A
Retailer 2
-
€4,760 EUR
View
A
Retailer 3
-
€4,897 EUR
View
B+
Retailer 4
-
€5,089 EUR
View
B+
Retailer 5
-
€5,184 EUR
View
Final sale: no returns
B+
Retailer 6
-
€5,533 EUR
View
B+
Retailer 7
-
€5,616 EUR
View
Retailer 8
-
€5,616 EUR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
€5,616 EUR
View
B+
Retailer 10
-
€5,847 EUR
View
B+
Retailer 11
-
€6,162 EUR
View
B+
Retailer 12
-
€6,162 EUR
View
B+
Retailer 13
-
€6,348 EUR
View
B
Retailer 14
-
€6,368 EUR
View
B
Retailer 15
-
€6,417 EUR
View
Retailer 16
-
€6,833 EUR
View
Price last confirmed 14 days ago
B
Retailer 17
-
€9,107 EUR
View
Most Expensive
B
NZ Jewellers
a8bcc0aa-6120-4e93-99b0-72c672bdba76 · Nov 5
€10,367 EUR
$11,575 USD
View
17 more retailers have this diamond
Prices start from €4,689 EURSave up to €5,678 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 Round
€4,689 EUR