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Heart|Natural|GIA

0.70ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 2556839992

Certificate GIA 2556839992

Diamond specifications and retailer prices

From £334 GBP
HK$3,500 HKD
As of November 1, 2026
Save £631 GBP (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,434 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.7ct natural heart diamond

This 0.7ct natural heart sits in the half to three-quarter 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 2556839992. Listed at 13 retailers as of October 29, 2026, with a 189% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556839992
Dimensions5.30 × 6.16 × 3.69 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
5.30 mm6.16 mm0.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2556839992
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.8%

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 1
Current: £450 GBP|Low: £296 GBP|High: £1,034 GBP|Avg: £530 GBP|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10£334 GBP
Retailer 7£376 GBP
Retailer 6£381 GBP
Retailer 5£413 GBP
Retailer 3£414 GBP
Retailer 9£418 GBP
Retailer 1£450 GBP
Retailer 12£563 GBP
Retailer 11£611 GBP
Retailer 8£621 GBP
Retailer 4£665 GBP
Retailer 2£965 GBP

30 data points across 12 retailers

13 retailers£334 GBP to £965 GBP

A
Cheapest Retailer
-
£334 GBP
HK$3,500 HKD
A
Retailer 2
-
£376 GBP
$504 USD
View
Final sale: no returns
A
Retailer 3
-
£381 GBP
$510 USD
View
A
Retailer 4
-
£413 GBP
€528 EUR
View
Retailer 5
-
£414 GBP
SGD 750 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
£418 GBP
$560 USD
View
A
Retailer 7
-
£450 GBP
View
B+
Retailer 8
-
£563 GBP
$755 USD
View
Retailer 9
-
£611 GBP
$819 USD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£621 GBP
ZAR 13,437 ZAR
View
Retailer 11
-
£665 GBP
A$1,371 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
£965 GBP
View
Most Expensive
NZ Jewellers
1faa4c00-74eb-4c7d-9a44-1c2c588f9dc0 · Sep 25
£1,434 GBP
$1,922 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from £334 GBPSave up to £631 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
£334 GBP