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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 €6,657 EUR
HK$58,100 HKD
As of October 30, 2026
Save €8,312 EUR (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €14,969 EUR at NZ Jewellers · As of October 30, 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 30, 2026, with prices from €6,657 to €14,969, a €8,312 spread on the same certified stone. NZ Jewellers lists it at €14,969. 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
Color
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

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: Oct 30
Current: €14,969 EUR|Low: €6,657 EUR|High: €14,969 EUR|Avg: €8,634 EUR|+18.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
November 1, 2026
Retailer 25€6,657 EUR
Retailer 15€6,673 EUR
Retailer 6€6,760 EUR
Retailer 11€6,975 EUR
Retailer 14€7,008 EUR
Retailer 23€7,443 EUR
Retailer 8€7,485 EUR
Retailer 22€7,485 EUR
Retailer 10€7,644 EUR
Retailer 2€8,036 EUR
Retailer 3€8,050 EUR
Retailer 7€8,108 EUR
Retailer 5€8,233 EUR
Retailer 17€8,293 EUR
Retailer 9€8,548 EUR
Retailer 12€8,548 EUR
Retailer 16€8,835 EUR
Retailer 21€9,233 EUR
Retailer 20€9,308 EUR
Retailer 19€9,355 EUR
Retailer 24€9,654 EUR
Retailer 18€9,944 EUR
Retailer 13€10,995 EUR
Retailer 4€12,540 EUR
NZ Jewellers€14,969 EUR

21 data points across 25 retailers

25 retailers€6,657 EUR to €14,969 EUR

A
Cheapest Retailer
-
€6,657 EUR
HK$58,100 HKD
A
Retailer 2
-
€6,673 EUR
$7,455 USD
View
A
Retailer 3
-
€6,760 EUR
$7,552 USD
View
A
Retailer 4
-
€6,975 EUR
$7,793 USD
View
A
Retailer 5
-
€7,008 EUR
$7,829 USD
View
A
Retailer 6
-
€7,443 EUR
$8,315 USD
View
A
Retailer 7
-
€7,485 EUR
$8,362 USD
View
B+
Retailer 8
-
€7,485 EUR
$8,362 USD
View
Final sale: no returns
B+
Retailer 9
-
€7,644 EUR
$8,540 USD
View
B+
Retailer 10
-
€8,036 EUR
£7,069 GBP
View
B+
Retailer 11
-
€8,050 EUR
$8,993 USD
View
B+
Retailer 12
-
€8,108 EUR
$9,058 USD
View
B+
Retailer 13
-
€8,233 EUR
$9,198 USD
View
Retailer 14
-
€8,293 EUR
A$14,253 AUD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
€8,548 EUR
$9,550 USD
View
B+
Retailer 16
-
€8,548 EUR
$9,550 USD
View
B+
Retailer 17
-
€8,835 EUR
$9,870 USD
View
B+
Retailer 18
-
€9,233 EUR
£8,122 GBP
View
B+
Retailer 19
-
€9,308 EUR
View
B+
Retailer 20
-
€9,355 EUR
$10,452 USD
View
B+
Retailer 21
-
€9,654 EUR
$10,785 USD
View
Retailer 22
-
€9,944 EUR
$11,110 USD
View
Price last confirmed 8 days ago
B
Retailer 23
-
€10,995 EUR
ZAR 198,446 ZAR
View
B
Retailer 24
-
€12,540 EUR
£11,031 GBP
View
Most Expensive
B
NZ Jewellers
02c63f2b-ddb7-4ac2-8ebd-2141d1ef2b1a · Oct 30
€14,969 EUR
$16,723 USD
View
24 more retailers have this diamond
Prices start from €6,657 EURSave up to €8,312 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
€6,657 EUR