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Heart|Natural|GIA

1.53ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6552549172

Certificate GIA 6552549172

Diamond specifications and retailer prices

From £2,976 GBP
As of November 6, 2026
Save £1,160 GBP (28%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,137 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.53ct natural heart diamond

This 1.53ct 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 6552549172. Listed at 8 retailers as of November 6, 2026, with prices from £2,976 to £4,137, a £1,160 spread on the same certified stone. GemTrove lists it at £4,137. 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

1.53
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552549172
Dimensions6.87 × 8.12 × 4.83 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Feather
Top View
6.87 mm8.12 mm1.53 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552549172
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.5%

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: £3,074 GBP|Low: £2,728 GBP|High: £4,877 GBP|Avg: £3,454 GBP|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£2,976 GBP
Retailer 1£3,074 GBP
Retailer 3£3,080 GBP
Retailer 7£3,135 GBP
Retailer 2£3,199 GBP
Retailer 6£3,213 GBP
Retailer 5£3,555 GBP
Retailer 8£4,434 GBP

36 data points across 8 retailers

8 retailers£2,976 GBP to £4,137 GBP

A
Cheapest Retailer
-
£2,976 GBP
A
Retailer 2
-
£3,074 GBP
View
A
Retailer 3
-
£3,080 GBP
View
Final sale: no returns
A
Retailer 4
-
£3,135 GBP
View
A
Retailer 5
-
£3,199 GBP
View
A
Retailer 6
-
£3,213 GBP
View
B+
Retailer 7
-
£3,555 GBP
View
Most Expensive
B+
GemTrove
GT-N-01269929-98 · Nov 6
£4,137 GBP
A$8,518 AUD
View
7 more retailers have this diamond
Prices start from £2,976 GBPSave up to £1,160 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
1.53ct Heart
£2,976 GBP