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Heart|Natural|GIA

1.30ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 5556483964

Certificate GIA 5556483964

Diamond specifications and retailer prices

From £1,338 GBP
As of November 4, 2026
Save £2,199 GBP (62%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,537 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural heart diamond

This 1.3ct natural heart sits in the one-and-a-quarter to one-and-a-half 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 5556483964. Listed at 4 retailers as of November 4, 2026, with prices from £1,338 to £3,537, a £2,199 spread on the same certified stone. NZ Jewellers lists it at £3,537. 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

1.30
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5556483964
Dimensions6.37 × 7.62 × 4.35 mm
L/W Ratio1.20
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.37 mm7.62 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556483964
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.1%

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 4
Current: £3,537 GBP|Low: £1,196 GBP|High: £3,537 GBP|Avg: £2,218 GBP|+3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 4£1,338 GBP
Retailer 3£1,486 GBP
Retailer 5£2,189 GBP
Retailer 2£2,539 GBP
NZ Jewellers£3,537 GBP

16 data points across 5 retailers

4 retailers£1,338 GBP to £3,537 GBP

A
Cheapest Retailer
-
£1,338 GBP
Final sale: no returns
A
Retailer 2
-
£1,486 GBP
View
B
Retailer 3
-
£2,539 GBP
View
Most Expensive
C
NZ Jewellers
0f8a2cba-2490-44b0-bee8-e6a2608b086c · Nov 5
£3,537 GBP
$4,734 USD
View
3 more retailers have this diamond
Prices start from £1,338 GBPSave up to £2,199 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
1.30ct Heart
£1,338 GBP