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1.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 6511363422

Certificate GIA 6511363422

Diamond specifications and retailer prices

From €5,116 EUR
$5,716 USD
As of October 30, 2026
Save €6,027 EUR (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €11,143 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511363422. Listed at 16 retailers as of October 30, 2026, with prices from €5,116 to €11,143, a €6,027 spread on the same certified stone. NZ Jewellers lists it at €11,143. 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
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6511363422
Dimensions7.31 × 7.27 × 4.54 mm
L/W Ratio1.01
Top View
7.31 mm7.27 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6511363422
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €11,143 EUR|Low: €4,831 EUR|High: €11,143 EUR|Avg: €6,913 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 1, 2026
Retailer 7€5,048 EUR
Retailer 8€5,264 EUR
Retailer 9€5,570 EUR
Retailer 3€5,571 EUR
Retailer 11€6,036 EUR
Retailer 10€6,129 EUR
Retailer 5€6,239 EUR
Retailer 6€6,903 EUR
Retailer 12€6,964 EUR
Retailer 4€7,341 EUR
Retailer 2€9,285 EUR
NZ Jewellers€11,143 EUR

37 data points across 12 retailers

16 retailers€5,116 EUR to €11,143 EUR

Retailer 1
-
€5,048 EUR
$5,640 USD
Price last confirmed 10 days ago
A
Retailer 2
-
€5,116 EUR
$5,716 USD
View
A
Retailer 3
-
€5,264 EUR
$5,881 USD
View
B+
Retailer 4
-
€5,570 EUR
$6,223 USD
View
Final sale: no returns
A
Retailer 5
-
€5,571 EUR
$6,224 USD
View
B+
Retailer 6
-
€6,036 EUR
$6,743 USD
View
B+
Retailer 7
-
€6,129 EUR
$6,847 USD
View
B+
Retailer 8
-
€6,239 EUR
£5,489 GBP
View
B+
Retailer 9
-
€6,588 EUR
$7,360 USD
View
B+
Retailer 10
-
€6,588 EUR
$7,360 USD
View
B+
Retailer 11
-
€6,607 EUR
$7,381 USD
View
B+
Retailer 12
-
€6,812 EUR
$7,610 USD
View
B+
Retailer 13
-
€6,903 EUR
View
B+
Retailer 14
-
€6,964 EUR
$7,780 USD
View
B
Retailer 15
-
€9,285 EUR
£8,168 GBP
View
Most Expensive
B
NZ Jewellers
674544cd-a763-4487-a622-a750ca9529cc · Oct 30
€11,143 EUR
$12,449 USD
View
15 more retailers have this diamond
Prices start from €5,116 EURSave up to €6,027 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
€5,116 EUR