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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5546346351

Certificate GIA 5546346351

Diamond specifications and retailer prices

From €2,157 EUR
HK$18,900 HKD
As of November 1, 2026
Save €2,590 EUR (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €5,639 EUR at NZ Jewellers · As of September 30, 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 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 5546346351. Listed at 15 retailers as of November 1, 2026, with a 120% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5546346351
Dimensions7.01 × 7.97 × 4.70 mm
L/W Ratio1.14
Top View
7.01 mm7.97 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5546346351
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.9%

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: €2,323 EUR|Low: €2,145 EUR|High: €5,478 EUR|Avg: €3,113 EUR|-12.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4€2,157 EUR
Retailer 1€2,323 EUR
Retailer 5€2,474 EUR
Retailer 2€2,966 EUR
Retailer 6€2,966 EUR
Retailer 8€3,007 EUR
Retailer 9€3,028 EUR
Retailer 7€3,049 EUR
Retailer 3€4,747 EUR

46 data points across 9 retailers

15 retailers€2,157 EUR to €4,747 EUR

A
Cheapest Retailer
-
€2,157 EUR
HK$18,900 HKD
A
Retailer 2
-
€2,323 EUR
₹248,149 INR
View
A
Retailer 3
-
€2,474 EUR
SGD 3,750 SGD
View
A
Retailer 4
-
€2,966 EUR
£2,620 GBP
View
A
Retailer 5
-
€2,966 EUR
$3,327 USD
View
A
Retailer 6
-
€3,007 EUR
SGD 4,557 SGD
View
A
Retailer 7
-
€3,028 EUR
$3,396 USD
View
A
Retailer 8
-
€3,049 EUR
$3,420 USD
View
A
Retailer 9
-
€3,198 EUR
A$5,518 AUD
View
Retailer 10
-
€3,237 EUR
$3,631 USD
View
Price last confirmed 25 days ago
Retailer 11
-
€3,237 EUR
$3,631 USD
View
Price last confirmed 25 days ago
Retailer 12
-
€3,361 EUR
$3,770 USD
View
Price last confirmed 32 days ago
Retailer 13
-
€3,735 EUR
$4,189 USD
View
Price last confirmed 34 days ago
B+
Retailer 14
-
€4,747 EUR
£4,192 GBP
View
Most Expensive
NZ Jewellers
d05267e3-2d78-42de-92fb-73038f7076f7 · Sep 30
€5,639 EUR
$6,325 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from €2,157 EURSave up to €2,590 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
€2,157 EUR