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Heart|Natural|GIA

1.57ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 2546192780

Certificate GIA 2546192780

Diamond specifications and retailer prices

From £3,783 GBP
As of October 31, 2026
Save £3,244 GBP (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £7,027 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.57ct natural heart diamond

This 1.57ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546192780. Listed at 8 retailers as of October 31, 2026, with prices from £3,783 to £7,027, a £3,244 spread on the same certified stone. NZ Jewellers lists it at £7,027. 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

1.57
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2546192780
Dimensions6.87 × 7.84 × 4.92 mm
L/W Ratio1.14
Top View
6.87 mm7.84 mm1.57 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546192780
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £7,027 GBP|Low: £3,232 GBP|High: £7,027 GBP|Avg: £4,637 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7£3,783 GBP
Retailer 8£3,878 GBP
Retailer 2£3,937 GBP
Retailer 5£4,201 GBP
Retailer 6£4,201 GBP
Retailer 3£4,431 GBP
Retailer 4£6,691 GBP
NZ Jewellers£7,027 GBP

45 data points across 8 retailers

8 retailers£3,783 GBP to £7,027 GBP

B+
Cheapest Retailer
-
£3,783 GBP
B+
Retailer 2
-
£3,878 GBP
View
Final sale: no returns
B+
Retailer 3
-
£3,937 GBP
View
B
Retailer 4
-
£4,201 GBP
View
B+
Retailer 5
-
£4,201 GBP
View
B
Retailer 6
-
£4,431 GBP
View
B
Retailer 7
-
£6,691 GBP
View
Most Expensive
B
NZ Jewellers
c09ed614-9e92-43be-9c22-f284579276c8 · Nov 5
£7,027 GBP
$9,405 USD
View
7 more retailers have this diamond
Prices start from £3,783 GBPSave up to £3,244 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.

B+
1.57ct Heart
£3,783 GBP