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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1538904520

Certificate GIA 1538904520

Diamond specifications and retailer prices

From €6,682 EUR
HK$58,100 HKD
As of October 29, 2026
Save €5,956 EUR (47%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €12,638 EUR at NZ Jewellers · As of October 27, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538904520. Listed at 25 retailers as of October 27, 2026, with prices from €6,682 to €12,638, a €5,956 spread on the same certified stone. NZ Jewellers lists it at €12,638. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1538904520
Dimensions7.31 × 7.26 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
7.31 mm7.26 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538904520
Side View
Table 57.0%Crown 34.5°Girdle: Sli. ThickPavilion 41.4°Culet: NoneDepth 63.0%

Caratlytics Score

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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 29
Current: €12,638 EUR|Low: €6,682 EUR|High: €12,638 EUR|Avg: €8,684 EUR
NZ Jewellers
Retailer 2
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Retailer 19
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Retailer 22
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Retailer 24
Retailer 25
October 29, 2026
Retailer 21€6,682 EUR
Retailer 11€6,698 EUR
Retailer 3€6,785 EUR
Retailer 8€7,002 EUR
Retailer 10€7,034 EUR
Retailer 19€7,471 EUR
Retailer 2€7,513 EUR
Retailer 5€7,513 EUR
Retailer 7€7,673 EUR
Retailer 22€8,080 EUR
Retailer 13€8,108 EUR
Retailer 4€8,138 EUR
Retailer 25€8,264 EUR
Retailer 15€8,324 EUR
Retailer 6€8,580 EUR
Retailer 9€8,580 EUR
Retailer 12€8,868 EUR
Retailer 23€9,294 EUR
Retailer 14€9,393 EUR
Retailer 17€9,478 EUR
Retailer 20€9,690 EUR
Retailer 18€9,982 EUR
Retailer 16€10,942 EUR
Retailer 24€12,587 EUR
NZ Jewellers€12,638 EUR

18 data points across 25 retailers

25 retailers€6,682 EUR to €12,638 EUR

A
Cheapest Retailer
-
€6,682 EUR
HK$58,100 HKD
A
Retailer 2
-
€6,698 EUR
$7,455 USD
View
A
Retailer 3
-
€6,785 EUR
$7,552 USD
View
A
Retailer 4
-
€7,002 EUR
$7,793 USD
View
A
Retailer 5
-
€7,034 EUR
$7,829 USD
View
B+
Retailer 6
-
€7,471 EUR
$8,315 USD
View
A
Retailer 7
-
€7,513 EUR
$8,362 USD
View
B+
Retailer 8
-
€7,513 EUR
$8,362 USD
View
Final sale: no returns
B+
Retailer 9
-
€7,673 EUR
$8,540 USD
View
B+
Retailer 10
-
€8,080 EUR
$8,993 USD
View
B+
Retailer 11
-
€8,108 EUR
£7,106 GBP
View
B+
Retailer 12
-
€8,138 EUR
$9,058 USD
View
B+
Retailer 13
-
€8,264 EUR
$9,198 USD
View
B+
Retailer 14
-
€8,324 EUR
A$14,253 AUD
View
B+
Retailer 15
-
€8,580 EUR
$9,550 USD
View
B+
Retailer 16
-
€8,580 EUR
$9,550 USD
View
B+
Retailer 17
-
€8,868 EUR
$9,870 USD
View
B+
Retailer 18
-
€9,294 EUR
£8,145 GBP
View
B+
Retailer 19
-
€9,393 EUR
View
B
Retailer 20
-
€9,478 EUR
$10,549 USD
View
B+
Retailer 21
-
€9,690 EUR
$10,785 USD
View
B+
Retailer 22
-
€9,982 EUR
$11,110 USD
View
B
Retailer 23
-
€10,942 EUR
ZAR 196,753 ZAR
View
Price last confirmed 7 days ago
B
Retailer 24
-
€12,587 EUR
£11,031 GBP
View
Most Expensive
B
NZ Jewellers
02c63f2b-ddb7-4ac2-8ebd-2141d1ef2b1a · Oct 27
€12,638 EUR
$14,066 USD
View
24 more retailers have this diamond
Prices start from €6,682 EURSave up to €5,956 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
€6,682 EUR