CaratHunter
Plans
Radiant|Natural|GIA

1.51ct H SI2 Radiant Natural Diamond

EX • H/SI2 • GIA 1555665977

Certificate GIA 1555665977

Diamond specifications and retailer prices

From €4,159 EUR
As of November 4, 2026
Save €4,062 EUR (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €8,220 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 H 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 1555665977. Listed at 15 retailers as of November 4, 2026, with prices from €4,159 to €8,220, a €4,062 spread on the same certified stone. NZ Jewellers lists it at €8,220. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.22°
OriginNatural
Grading LabGIA
CertificateGIA 1555665977
Dimensions7.78 × 5.83 × 3.99 mm
L/W Ratio1.33
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
7.78 mm5.83 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555665977
Side View
Table 68.0%Crown 43.22°Girdle: Slightly ThickPavilionCulet: NoneDepth 68.4%

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 4
Current: €8,220 EUR|Low: €4,029 EUR|High: €8,309 EUR|Avg: €5,363 EUR|-1.1%
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
November 7, 2026
Retailer 4€4,159 EUR
Retailer 14€4,287 EUR
Retailer 3€4,537 EUR
Retailer 7€4,735 EUR
Retailer 2€4,748 EUR
Retailer 5€4,914 EUR
Retailer 6€4,914 EUR
Retailer 12€4,914 EUR
Retailer 13€5,052 EUR
Retailer 11€5,142 EUR
Retailer 8€5,531 EUR
Retailer 10€5,671 EUR
Retailer 9€7,807 EUR
NZ Jewellers€8,220 EUR

29 data points across 14 retailers

15 retailers€4,159 EUR to €8,220 EUR

A
Cheapest Retailer
-
€4,159 EUR
A
Retailer 2
-
€4,287 EUR
View
A
Retailer 3
-
€4,537 EUR
View
Final sale: no returns
A
Retailer 4
-
€4,735 EUR
View
A
Retailer 5
-
€4,748 EUR
View
Retailer 6
-
€4,914 EUR
View
Price last confirmed 9 days ago
A
Retailer 7
-
€4,914 EUR
View
A
Retailer 8
-
€4,914 EUR
View
A
Retailer 9
-
€5,052 EUR
View
B+
Retailer 10
-
€5,142 EUR
View
B+
Retailer 11
-
€5,531 EUR
View
B+
Retailer 12
-
€5,671 EUR
View
Retailer 13
-
€5,732 EUR
View
Price last confirmed 17 days ago
B
Retailer 14
-
€7,807 EUR
View
Most Expensive
B
NZ Jewellers
4550dc16-0292-4ea4-b8e9-ba98c68b4e06 · Nov 5
€8,220 EUR
$9,178 USD
View
14 more retailers have this diamond
Prices start from €4,159 EURSave up to €4,062 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
€4,159 EUR