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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1558685000

Certificate GIA 1558685000

Diamond specifications and retailer prices

From €3,691 EUR
$4,124 USD
As of November 1, 2026
Save €2,998 EUR (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €6,689 EUR at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558685000. Listed at 13 retailers as of October 26, 2026, with prices from €3,691 to €6,689, a €2,998 spread on the same certified stone. Wholesale Diamonds Direct lists it at €6,689. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558685000
Dimensions7.75 × 5.70 × 3.87 mm
L/W Ratio1.36
Culet sizeNone
Top View
7.75 mm5.70 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558685000
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.8%

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: €4,733 EUR|Low: €3,691 EUR|High: €6,819 EUR|Avg: €4,739 EUR|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 2, 2026
Retailer 10€3,691 EUR
Retailer 12€3,734 EUR
Retailer 8€3,795 EUR
Retailer 9€3,882 EUR
Retailer 4€4,001 EUR
Retailer 6€4,170 EUR
Retailer 13€4,617 EUR
Retailer 2€4,631 EUR
Retailer 1€4,733 EUR
Retailer 7€5,084 EUR
Retailer 5€5,229 EUR
Retailer 11€6,181 EUR
Retailer 3€6,568 EUR
Wholesale Diamonds Direct€6,689 EUR

31 data points across 14 retailers

13 retailers€3,691 EUR to €6,689 EUR

A
Cheapest Retailer
-
€3,691 EUR
$4,124 USD
A
Retailer 2
-
€3,734 EUR
SGD 5,637 SGD
View
A
Retailer 3
-
€3,795 EUR
$4,240 USD
View
A
Retailer 4
-
€3,882 EUR
$4,337 USD
View
A
Retailer 5
-
€4,001 EUR
SGD 6,040 SGD
View
A
Retailer 6
-
€4,170 EUR
£3,668 GBP
View
A
Retailer 7
-
€4,617 EUR
$5,158 USD
View
A
Retailer 8
-
€4,631 EUR
$5,174 USD
View
A
Retailer 9
-
€4,733 EUR
View
B+
Retailer 10
-
€5,084 EUR
$5,680 USD
View
B
Retailer 11
-
€6,181 EUR
$6,905 USD
View
B
Retailer 12
-
€6,568 EUR
$7,338 USD
View
Most Expensive
B
Wholesale Diamonds Direct
570704296 · Oct 26
€6,689 EUR
$7,473 USD
View
12 more retailers have this diamond
Prices start from €3,691 EURSave up to €2,998 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 Radiant
€3,691 EUR