Heart|Natural|GIA

1.51ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6542728816

Certificate GIA 6542728816

Diamond specifications and retailer prices

From €3,095 EUR
As of November 6, 2026
Save €3,397 EUR (52%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €7,587 EUR at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542728816. Listed at 16 retailers as of November 4, 2026, with a 110% 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542728816
Dimensions7.06 × 8.02 × 4.60 mm
L/W Ratio1.14
Top View
7.06 mm8.02 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542728816
Side View
Table 62.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.4%

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 6
Current: €7,587 EUR|Low: €3,060 EUR|High: €7,735 EUR|Avg: €4,624 EUR|-1.9%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6€3,095 EUR
Retailer 2€3,293 EUR
Retailer 7€3,773 EUR
Retailer 9€3,933 EUR
Retailer 4€3,981 EUR
Retailer 3€4,024 EUR
Retailer 8€4,221 EUR
Retailer 5€6,493 EUR
Queensmith€7,587 EUR

41 data points across 9 retailers

16 retailers€3,095 EUR to €6,493 EUR

A
Cheapest Retailer
-
€3,095 EUR
A
Retailer 2
-
€3,293 EUR
View
A
Retailer 3
-
€3,773 EUR
View
Final sale: no returns
A
Retailer 4
-
€3,933 EUR
View
A
Retailer 5
-
€3,981 EUR
View
A
Retailer 6
-
€4,024 EUR
View
Retailer 7
-
€4,088 EUR
View
Price last confirmed 22 days ago
Retailer 8
-
€4,088 EUR
View
Price last confirmed 22 days ago
Retailer 9
-
€4,088 EUR
View
Price last confirmed 20 days ago
A
Retailer 10
-
€4,116 EUR
View
A
Retailer 11
-
€4,221 EUR
View
B+
Retailer 12
-
€4,341 EUR
View
Retailer 13
-
€4,717 EUR
View
Price last confirmed 19 days ago
B+
Retailer 14
-
€6,493 EUR
View
Retailer 15
-
€7,121 EUR
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6542728816 · Oct 28
€7,587 EUR
£6,670 GBP
View
Price last confirmed 9 days ago
15 more retailers have this diamond
Prices start from €3,095 EURSave up to €3,397 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
€3,095 EUR