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Round|Natural|GIA

1.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6512752915

Certificate GIA 6512752915

Diamond specifications and retailer prices

From €5,981 EUR
HK$52,200 HKD
As of October 30, 2026
Save €7,468 EUR (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €13,449 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 6512752915. Listed at 19 retailers as of October 30, 2026, with prices from €5,981 to €13,449, a €7,468 spread on the same certified stone. NZ Jewellers lists it at €13,449. 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°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6512752915
Dimensions7.41 × 7.36 × 4.47 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.41 mm7.36 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512752915
Side View
Table 59.0%Crown 34°Girdle: ThickPavilion 40.6°Culet: NoneDepth 60.5%

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: €13,449 EUR|Low: €5,981 EUR|High: €13,449 EUR|Avg: €8,124 EUR|+1.0%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 10€5,981 EUR
Retailer 7€6,002 EUR
Retailer 11€6,296 EUR
Retailer 4€6,709 EUR
Retailer 6€6,724 EUR
Retailer 16€6,725 EUR
Retailer 15€7,164 EUR
Retailer 5€7,285 EUR
Retailer 19€7,397 EUR
Retailer 2€7,447 EUR
Retailer 17€7,626 EUR
Retailer 9€8,027 EUR
Retailer 3€8,406 EUR
Retailer 8€8,539 EUR
Retailer 13€8,810 EUR
Retailer 18€8,854 EUR
Retailer 12€9,879 EUR
Retailer 14€11,266 EUR
NZ Jewellers€13,449 EUR

40 data points across 19 retailers

19 retailers€5,981 EUR to €13,449 EUR

A
Cheapest Retailer
-
€5,981 EUR
HK$52,200 HKD
A
Retailer 2
-
€6,002 EUR
$6,705 USD
View
A
Retailer 3
-
€6,296 EUR
$7,034 USD
View
A
Retailer 4
-
€6,709 EUR
$7,495 USD
View
A
Retailer 5
-
€6,724 EUR
$7,512 USD
View
Final sale: no returns
A
Retailer 6
-
€6,725 EUR
$7,513 USD
View
A
Retailer 7
-
€7,164 EUR
$8,004 USD
View
B+
Retailer 8
-
€7,285 EUR
$8,139 USD
View
B+
Retailer 9
-
€7,397 EUR
$8,264 USD
View
A
Retailer 10
-
€7,447 EUR
£6,551 GBP
View
Retailer 11
-
€7,626 EUR
A$13,107 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
€8,027 EUR
$8,967 USD
View
B+
Retailer 13
-
€8,406 EUR
$9,391 USD
View
B+
Retailer 14
-
€8,539 EUR
$9,540 USD
View
B+
Retailer 15
-
€8,810 EUR
View
Retailer 16
-
€8,854 EUR
$9,892 USD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
€9,879 EUR
ZAR 178,295 ZAR
View
B
Retailer 18
-
€11,266 EUR
£9,911 GBP
View
Most Expensive
B
NZ Jewellers
6ce93c74-746a-4bb5-80ce-0577f7010937 · Oct 30
€13,449 EUR
$15,025 USD
View
18 more retailers have this diamond
Prices start from €5,981 EURSave up to €7,468 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
€5,981 EUR