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Heart|Natural|GIA

1.51ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2568019518

Certificate GIA 2568019518

Diamond specifications and retailer prices

From £2,876 GBP
As of November 6, 2026
Save £993 GBP (26%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,869 GBP at GemTrove · As of November 7, 2026
View at GemTrove

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2568019518. Listed at 6 retailers as of November 6, 2026, with prices from £2,876 to £3,869, a £993 spread on the same certified stone. GemTrove lists it at £3,869. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2568019518
Dimensions6.80 × 8.08 × 4.75 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Needle
Top View
6.80 mm8.08 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2568019518
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: 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 6
Current: £2,876 GBP|Low: £2,876 GBP|High: £3,857 GBP|Avg: £3,224 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1£2,876 GBP
Retailer 3£2,917 GBP
Retailer 2£3,108 GBP
Retailer 5£3,121 GBP
Retailer 4£3,458 GBP

45 data points across 5 retailers

6 retailers£2,876 GBP to £3,869 GBP

A
Cheapest Retailer
-
£2,876 GBP
A
Retailer 2
-
£2,917 GBP
View
A
Retailer 3
-
£3,108 GBP
View
A
Retailer 4
-
£3,121 GBP
View
B+
Retailer 5
-
£3,458 GBP
View
Most Expensive
B+
GemTrove
GT-N-01269521-98 · Nov 7
£3,869 GBP
A$7,968 AUD
View
5 more retailers have this diamond
Prices start from £2,876 GBPSave up to £993 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
£2,876 GBP