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Round|Natural|GIA

1.51ct I SI1 Round Natural Diamond

VG • I/SI1 • GIA 6531260924

Certificate GIA 6531260924

Diamond specifications and retailer prices

From €2,979 EUR
HK$26,000 HKD
As of November 1, 2026
Save €4,041 EUR (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €7,020 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6531260924. Listed at 19 retailers as of October 30, 2026, with prices from €2,979 to €7,020, a €4,041 spread on the same certified stone. NZ Jewellers lists it at €7,020. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
Crown angle37°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6531260924
Dimensions7.20 × 7.11 × 4.54 mm
L/W Ratio1.01
Top View
7.20 mm7.11 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6531260924
Side View
Table 58.0%Crown 37°Girdle: STK-THKPavilion 40°Culet: NoneDepth 63.5%

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: Nov 1
Current: €7,020 EUR|Low: €2,944 EUR|High: €7,020 EUR|Avg: €4,367 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
Retailer 15
November 2, 2026
Retailer 9€2,979 EUR
Retailer 11€3,444 EUR
Retailer 13€3,594 EUR
Retailer 15€3,718 EUR
Retailer 14€3,719 EUR
Retailer 2€3,852 EUR
Retailer 4€4,030 EUR
Retailer 5€4,030 EUR
Retailer 3€4,062 EUR
Retailer 7€4,067 EUR
Retailer 12€4,519 EUR
Retailer 8€4,540 EUR
Retailer 6€4,649 EUR
Retailer 10€6,452 EUR
NZ Jewellers€7,020 EUR

43 data points across 15 retailers

19 retailers€2,979 EUR to €7,020 EUR

A
Cheapest Retailer
-
€2,979 EUR
HK$26,000 HKD
B+
Retailer 2
-
€3,444 EUR
$3,848 USD
View
B+
Retailer 3
-
€3,486 EUR
$3,895 USD
View
B+
Retailer 4
-
€3,514 EUR
$3,926 USD
View
B+
Retailer 5
-
€3,594 EUR
$4,015 USD
View
B+
Retailer 6
-
€3,718 EUR
$4,154 USD
View
Final sale: no returns
A
Retailer 7
-
€3,719 EUR
SGD 5,615 SGD
View
B+
Retailer 8
-
€3,750 EUR
SGD 5,661 SGD
View
A
Retailer 9
-
€3,852 EUR
£3,389 GBP
View
B+
Retailer 10
-
€4,030 EUR
$4,502 USD
View
B+
Retailer 11
-
€4,030 EUR
$4,502 USD
View
Retailer 12
-
€4,062 EUR
A$6,982 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
€4,067 EUR
$4,543 USD
View
B+
Retailer 14
-
€4,519 EUR
£3,975 GBP
View
B+
Retailer 15
-
€4,540 EUR
View
B+
Retailer 16
-
€4,649 EUR
$5,194 USD
View
B
Retailer 17
-
€5,727 EUR
$6,398 USD
View
B
Retailer 18
-
€6,452 EUR
£5,676 GBP
View
Most Expensive
B
NZ Jewellers
1cc335ea-eb93-44d1-91b3-413f7d96281e · Oct 30
€7,020 EUR
$7,843 USD
View
18 more retailers have this diamond
Prices start from €2,979 EURSave up to €4,041 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
€2,979 EUR