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Heart|Natural|GIA

0.70ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2556056312

Certificate GIA 2556056312

Diamond specifications and retailer prices

From £387 GBP
MYR 2,115 MYR
As of November 2, 2026
Save £113 GBP (23%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £500 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 0.7ct natural heart diamond

This 0.7ct natural heart sits in the half to three-quarter carat band, graded J 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 2556056312. Listed at 5 retailers as of October 31, 2026, with prices from £387 to £500, a £113 spread on the same certified stone. Blue Nile lists it at £500. 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

0.70
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556056312
Dimensions5.38 × 6.30 × 3.73 mm
L/W Ratio1.17
Top View
5.38 mm6.30 mm0.70 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556056312
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.2%

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 2
Current: £500 GBP|Low: £338 GBP|High: £568 GBP|Avg: £447 GBP|-11.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 5£387 GBP
Retailer 3£392 GBP
Retailer 4£430 GBP
Retailer 2£476 GBP
Blue Nile£500 GBP

40 data points across 5 retailers

5 retailers£387 GBP to £500 GBP

A
Cheapest Retailer
-
£387 GBP
MYR 2,115 MYR
A
Retailer 2
-
£392 GBP
$526 USD
View
Final sale: no returns
A
Retailer 3
-
£430 GBP
SGD 780 SGD
View
A
Retailer 4
-
£476 GBP
View
Most Expensive
B+
Blue Nile
28865810 · Oct 31
£500 GBP
$671 USD
View
4 more retailers have this diamond
Prices start from £387 GBPSave up to £113 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
0.70ct Heart
£387 GBP