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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 6551629134

Certificate GIA 6551629134

Diamond specifications and retailer prices

From €3,732 EUR
HK$32,700 HKD
As of November 2, 2026
Save €4,086 EUR (52%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €9,263 EUR at NZ Jewellers · As of September 25, 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 F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551629134. Listed at 17 retailers as of November 1, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551629134
Dimensions6.72 × 7.82 × 4.99 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.72 mm7.82 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551629134
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.8%

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 2
Current: €4,538 EUR|Low: €3,675 EUR|High: €8,157 EUR|Avg: €5,053 EUR|-3.8%
Retailer 1
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
Retailer 15
November 2, 2026
Retailer 8€3,732 EUR
Retailer 13€3,736 EUR
Retailer 12€3,940 EUR
Retailer 10€4,166 EUR
Retailer 15€4,206 EUR
Retailer 4€4,210 EUR
Retailer 3€4,244 EUR
Retailer 6€4,333 EUR
Retailer 1€4,538 EUR
Retailer 11€4,862 EUR
Retailer 7€5,329 EUR
Retailer 2€6,125 EUR
Retailer 9€6,134 EUR
Retailer 14€7,817 EUR
Retailer 5€7,837 EUR

25 data points across 15 retailers

17 retailers€3,732 EUR to €7,817 EUR

A
Cheapest Retailer
-
€3,732 EUR
HK$32,700 HKD
A
Retailer 2
-
€3,736 EUR
$4,190 USD
View
A
Retailer 3
-
€3,940 EUR
$4,419 USD
View
A
Retailer 4
-
€4,166 EUR
$4,673 USD
View
Final sale: no returns
A
Retailer 5
-
€4,206 EUR
View
A
Retailer 6
-
€4,210 EUR
$4,722 USD
View
A
Retailer 7
-
€4,244 EUR
$4,760 USD
View
Retailer 8
-
€4,333 EUR
$4,860 USD
View
Price last confirmed 18 days ago
B+
Retailer 9
-
€4,538 EUR
$5,090 USD
View
B+
Retailer 10
-
€4,862 EUR
£4,293 GBP
View
Retailer 11
-
€5,329 EUR
A$9,195 AUD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
€5,701 EUR
A$9,838 AUD
View
B
Retailer 13
-
€6,125 EUR
ZAR 110,985 ZAR
View
B
Retailer 14
-
€6,134 EUR
$6,880 USD
View
B
Retailer 15
-
€7,817 EUR
£6,904 GBP
View
Retailer 16
-
€7,837 EUR
$8,790 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
5751a6e1-0656-4f28-9314-4eb3e3b90e49 · Sep 25
€9,263 EUR
$10,389 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from €3,732 EURSave up to €4,086 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
€3,732 EUR