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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 €2,967 EUR
HK$26,000 HKD
As of November 1, 2026
Save €4,025 EUR (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,993 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 €2,967 to €6,993, a €4,025 spread on the same certified stone. NZ Jewellers lists it at €6,993. 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
Colour
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: €6,993 EUR|Low: €2,933 EUR|High: €6,993 EUR|Avg: €4,350 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€2,967 EUR
Retailer 11€3,431 EUR
Retailer 13€3,580 EUR
Retailer 15€3,704 EUR
Retailer 14€3,705 EUR
Retailer 2€3,837 EUR
Retailer 4€4,014 EUR
Retailer 5€4,014 EUR
Retailer 3€4,046 EUR
Retailer 7€4,051 EUR
Retailer 12€4,501 EUR
Retailer 8€4,523 EUR
Retailer 6€4,631 EUR
Retailer 10€6,427 EUR
NZ Jewellers€6,993 EUR

43 data points across 15 retailers

19 retailers€2,967 EUR to €6,993 EUR

A
Cheapest Retailer
-
€2,967 EUR
HK$26,000 HKD
B+
Retailer 2
-
€3,431 EUR
$3,848 USD
View
B+
Retailer 3
-
€3,473 EUR
$3,895 USD
View
B+
Retailer 4
-
€3,500 EUR
$3,926 USD
View
B+
Retailer 5
-
€3,580 EUR
$4,015 USD
View
B+
Retailer 6
-
€3,704 EUR
$4,154 USD
View
Final sale: no returns
A
Retailer 7
-
€3,705 EUR
SGD 5,615 SGD
View
Retailer 8
-
€3,735 EUR
SGD 5,661 SGD
View
Price last confirmed 7 days ago
A
Retailer 9
-
€3,837 EUR
£3,389 GBP
View
B+
Retailer 10
-
€4,014 EUR
$4,502 USD
View
B+
Retailer 11
-
€4,014 EUR
$4,502 USD
View
Retailer 12
-
€4,046 EUR
A$6,982 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
€4,051 EUR
$4,543 USD
View
B+
Retailer 14
-
€4,501 EUR
£3,975 GBP
View
B+
Retailer 15
-
€4,523 EUR
View
B+
Retailer 16
-
€4,631 EUR
$5,194 USD
View
B
Retailer 17
-
€5,704 EUR
$6,398 USD
View
B
Retailer 18
-
€6,427 EUR
£5,676 GBP
View
Most Expensive
B
NZ Jewellers
1cc335ea-eb93-44d1-91b3-413f7d96281e · Oct 30
€6,993 EUR
$7,843 USD
View
18 more retailers have this diamond
Prices start from €2,967 EURSave up to €4,025 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
€2,967 EUR