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Heart|Natural|GIA

1.51ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 5546957574

Certificate GIA 5546957574

Diamond specifications and retailer prices

From £2,640 GBP
$3,515 USD
As of October 28, 2026
Save £203 GBP (7%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,843 GBP at 77 Diamonds · As of October 29, 2026
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546957574. Listed at 6 retailers as of October 28, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546957574
Dimensions7.25 × 7.68 × 4.69 mm
L/W Ratio1.06
Top View
7.25 mm7.68 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5546957574
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £2,843 GBP|Low: £2,339 GBP|High: £3,253 GBP|Avg: £2,825 GBP|-11.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3£2,640 GBP
Retailer 2£2,691 GBP
Retailer 4£2,709 GBP
Retailer 6£2,755 GBP
Retailer 5£2,836 GBP
77 Diamonds£2,843 GBP

46 data points across 6 retailers

6 retailers£2,640 GBP to £2,843 GBP

A
Cheapest Retailer
-
£2,640 GBP
$3,515 USD
A
Retailer 2
-
£2,691 GBP
₹341,288 INR
View
A
Retailer 3
-
£2,709 GBP
$3,608 USD
View
Final sale: no returns
A
Retailer 4
-
£2,755 GBP
MYR 14,947 MYR
View
A
Retailer 5
-
£2,836 GBP
SGD 5,104 SGD
View
Most Expensive
A
77 Diamonds
HSCPXY345C3H · Oct 29
£2,843 GBP
View
5 more retailers have this diamond
Prices start from £2,640 GBPSave up to £203 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
£2,640 GBP