CaratHunter
Plans
Heart|Natural|GIA

1.51ct L SI1 Heart Natural Diamond

EX • L/SI1 • GIA 7536538529

Certificate GIA 7536538529

Diamond specifications and retailer prices

From €1,644 EUR
As of November 5, 2026
Save €2,526 EUR (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €4,169 EUR at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart 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 7536538529. Listed at 6 retailers as of November 3, 2026, with prices from €1,644 to €4,169, a €2,526 spread on the same certified stone. NZ Jewellers lists it at €4,169. 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
SymmetryVery Good
FluorescenceFaint
Crown angle35.33°
Pavilion angle41.58°
OriginNatural
Grading LabGIA
CertificateGIA 7536538529
Dimensions7.11 × 7.98 × 4.65 mm
L/W Ratio1.12
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Etch Channel, Needle, Indented Natural
Top View
7.11 mm7.98 mm1.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7536538529
Side View
Table 63.0%Crown 35.33°GirdlePavilion 41.58°CuletDepth 58.2%

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 5
Current: €4,169 EUR|Low: €1,591 EUR|High: €4,243 EUR|Avg: €2,129 EUR|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 2€1,644 EUR
Retailer 3€1,689 EUR
Retailer 6€1,710 EUR
Retailer 7€1,735 EUR
Retailer 4€1,751 EUR
Retailer 5€1,789 EUR
NZ Jewellers€4,169 EUR

40 data points across 7 retailers

6 retailers€1,644 EUR to €4,169 EUR

A
Cheapest Retailer
-
€1,644 EUR
A
Retailer 2
-
€1,689 EUR
View
A
Retailer 3
-
€1,710 EUR
View
A
Retailer 4
-
€1,751 EUR
View
B+
Retailer 5
-
€1,789 EUR
View
Most Expensive
C
NZ Jewellers
1cedb843-b85c-42c6-83fc-f902cef6d3da · Nov 3
€4,169 EUR
$4,655 USD
View
5 more retailers have this diamond
Prices start from €1,644 EURSave up to €2,526 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 Heart
€1,644 EUR