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Heart|Natural|GIA

1.51ct E I1 Heart Natural Diamond

ID • E/I1 • GIA 6551214591

Certificate GIA 6551214591

Diamond specifications and retailer prices

From £1,357 GBP
HK$14,200 HKD
As of November 1, 2026
Save £464 GBP (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,820 GBP at Calavera New York · As of October 29, 2026
View at Calavera New York

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551214591. Listed at 4 retailers as of October 29, 2026, with prices from £1,357 to £1,820, a £464 spread on the same certified stone. Calavera New York lists it at £1,820. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
I1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551214591
Dimensions6.50 × 8.13 × 4.78 mm
L/W Ratio1.25
Top View
6.50 mm8.13 mm1.51 ctE / I1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6551214591
Side View
Table 56.0%CrownGirdlePavilionCulet: NoneDepth 58.8%

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 1
Current: £1,820 GBP|Low: £1,337 GBP|High: £2,925 GBP|Avg: £2,000 GBP
Calavera New York
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2£1,357 GBP
Retailer 3£1,644 GBP
Retailer 4£1,723 GBP
Calavera New York£1,820 GBP
Retailer 5£2,925 GBP

9 data points across 5 retailers

4 retailers£1,357 GBP to £1,820 GBP

A
Cheapest Retailer
-
£1,357 GBP
HK$14,200 HKD
B+
Retailer 2
-
£1,644 GBP
$2,203 USD
View
B+
Retailer 3
-
£1,723 GBP
$2,308 USD
View
Most Expensive
B+
Calavera New York
98aab6b7-315a-4be9-a6fc-2d7f5550477d · Oct 29
£1,820 GBP
$2,439 USD
View
3 more retailers have this diamond
Prices start from £1,357 GBPSave up to £464 GBP

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
£1,357 GBP