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Heart|Natural|GIA

1.57ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 6501528525

Certificate GIA 6501528525

Diamond specifications and retailer prices

From £2,391 GBP
As of November 1, 2026
Save £2,489 GBP (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £4,880 GBP at NZ Jewellers · As of November 3, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6501528525. Listed at 10 retailers as of November 1, 2026, with prices from £2,391 to £4,880, a £2,489 spread on the same certified stone. NZ Jewellers lists it at £4,880. 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

1.57
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6501528525
Dimensions6.75 × 8.42 × 4.80 mm
L/W Ratio1.25
Top View
6.75 mm8.42 mm1.57 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6501528525
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.0%

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: Nov 1
Current: £4,880 GBP|Low: £2,391 GBP|High: £4,880 GBP|Avg: £3,248 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 12£2,391 GBP
Retailer 6£2,487 GBP
Retailer 13£2,507 GBP
Retailer 9£2,801 GBP
Retailer 10£2,801 GBP
Retailer 8£2,909 GBP
Retailer 3£2,910 GBP
Retailer 2£2,927 GBP
Retailer 4£3,020 GBP
Retailer 11£3,232 GBP
Retailer 14£3,333 GBP
Retailer 5£4,525 GBP
Retailer 7£4,684 GBP
NZ Jewellers£4,880 GBP

39 data points across 14 retailers

10 retailers£2,391 GBP to £4,880 GBP

A
Cheapest Retailer
-
£2,391 GBP
A
Retailer 2
-
£2,487 GBP
View
Retailer 3
-
£2,801 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£2,801 GBP
View
B+
Retailer 5
-
£2,909 GBP
View
B+
Retailer 6
-
£2,910 GBP
View
B+
Retailer 7
-
£2,927 GBP
View
B+
Retailer 8
-
£3,232 GBP
View
B
Retailer 9
-
£4,684 GBP
View
Most Expensive
B
NZ Jewellers
8fcb2d63-570f-4727-856d-5667d7af08bb · Nov 3
£4,880 GBP
$6,532 USD
View
9 more retailers have this diamond
Prices start from £2,391 GBPSave up to £2,489 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
1.57ct Heart
£2,391 GBP