CaratHunter
Plans
Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 6227537173

Certificate GIA 6227537173

Diamond specifications and retailer prices

From €6,138 EUR
$6,884 USD
As of November 1, 2026
Save €6,973 EUR (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €13,111 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6227537173. Listed at 18 retailers as of October 30, 2026, with prices from €6,138 to €13,111, a €6,973 spread on the same certified stone. NZ Jewellers lists it at €13,111. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6227537173
Dimensions7.63 × 5.68 × 4.01 mm
L/W Ratio1.34
Top View
7.63 mm5.68 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6227537173
Side View
Table 69.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €13,111 EUR|Low: €6,138 EUR|High: €13,111 EUR|Avg: €8,060 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
November 1, 2026
Retailer 13€6,138 EUR
Retailer 5€6,218 EUR
Retailer 9€6,555 EUR
Retailer 3€6,610 EUR
Retailer 11€7,101 EUR
Retailer 10€7,211 EUR
Retailer 4€7,241 EUR
Retailer 7€7,246 EUR
Retailer 6€7,647 EUR
Retailer 12€8,195 EUR
Retailer 8€8,566 EUR
Retailer 2€10,924 EUR
NZ Jewellers€13,111 EUR

32 data points across 13 retailers

18 retailers€6,138 EUR to €13,111 EUR

B+
Cheapest Retailer
-
€6,138 EUR
$6,884 USD
B+
Retailer 2
-
€6,218 EUR
$6,974 USD
View
B
Retailer 3
-
€6,555 EUR
$7,352 USD
View
B
Retailer 4
-
€6,610 EUR
$7,414 USD
View
B
Retailer 5
-
€6,983 EUR
$7,832 USD
View
B
Retailer 6
-
€7,101 EUR
$7,965 USD
View
B
Retailer 7
-
€7,211 EUR
$8,088 USD
View
B
Retailer 8
-
€7,241 EUR
$8,121 USD
View
B+
Retailer 9
-
€7,246 EUR
£6,399 GBP
View
B
Retailer 10
-
€7,647 EUR
£6,753 GBP
View
B
Retailer 11
-
€7,721 EUR
$8,660 USD
View
B
Retailer 12
-
€7,721 EUR
$8,660 USD
View
B
Retailer 13
-
€7,980 EUR
$8,950 USD
View
B
Retailer 14
-
€8,195 EUR
$9,191 USD
View
B
Retailer 15
-
€8,566 EUR
View
Retailer 16
-
€8,633 EUR
$9,683 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
€10,924 EUR
£9,648 GBP
View
Most Expensive
B
NZ Jewellers
aad99454-fecf-44df-9c43-f7e4f1fdefab · Oct 30
€13,111 EUR
$14,705 USD
View
17 more retailers have this diamond
Prices start from €6,138 EURSave up to €6,973 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.

B+
1.51ct Radiant
€6,138 EUR