CaratHunter
Plans
Radiant|Natural|GIA

1.51ct L SI1 Radiant Natural Diamond

EX • L/SI1 • GIA 6551369573

Certificate GIA 6551369573

Diamond specifications and retailer prices

From €2,148 EUR
As of November 6, 2026
Save €2,419 EUR (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,567 EUR at NZ Jewellers · As of November 5, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551369573. Listed at 10 retailers as of November 5, 2026, with prices from €2,148 to €4,567, a €2,419 spread on the same certified stone. NZ Jewellers lists it at €4,567. 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
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551369573
Dimensions7.50 × 5.56 × 3.93 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
7.50 mm5.56 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551369573
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 70.5%

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 6
Current: €4,567 EUR|Low: €2,146 EUR|High: €4,567 EUR|Avg: €2,571 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3€2,148 EUR
Retailer 10€2,172 EUR
Retailer 6€2,185 EUR
Retailer 8€2,185 EUR
Retailer 9€2,285 EUR
Retailer 2€2,311 EUR
Retailer 7€2,520 EUR
Retailer 5€2,665 EUR
Retailer 4€2,711 EUR
NZ Jewellers€4,567 EUR

37 data points across 10 retailers

10 retailers€2,148 EUR to €4,567 EUR

A
Cheapest Retailer
-
€2,148 EUR
B+
Retailer 2
-
€2,172 EUR
View
B+
Retailer 3
-
€2,185 EUR
View
Retailer 4
-
€2,185 EUR
View
Price last confirmed 13 days ago
B+
Retailer 5
-
€2,285 EUR
View
B+
Retailer 6
-
€2,311 EUR
View
B+
Retailer 7
-
€2,520 EUR
View
B
Retailer 8
-
€2,665 EUR
View
B
Retailer 9
-
€2,711 EUR
View
Most Expensive
C
NZ Jewellers
c177503c-87dd-41ac-a55e-122f567601ac · Nov 5
€4,567 EUR
$5,099 USD
View
9 more retailers have this diamond
Prices start from €2,148 EURSave up to €2,419 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
€2,148 EUR