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Heart|Natural|GIA

1.70ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 6555386145

Certificate GIA 6555386145

Diamond specifications and retailer prices

From £3,379 GBP
₹431,840 INR
As of November 2, 2026
Save £4,398 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £7,777 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct 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 6555386145. Listed at 22 retailers as of October 30, 2026, with prices from £3,379 to £7,777, a £4,398 spread on the same certified stone. NZ Jewellers lists it at £7,777. 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

1.70
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555386145
Dimensions7.20 × 8.29 × 4.45 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Cloud, Natural
Top View
7.20 mm8.29 mm1.70 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555386145
Side View
Table 66.0%CrownGirdle: MED-XTKPavilionCulet: NoneDepth 53.7%

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: £7,777 GBP|Low: £3,379 GBP|High: £8,074 GBP|Avg: £4,791 GBP|-3.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 2£3,379 GBP
Retailer 16£3,606 GBP
Retailer 18£3,926 GBP
Retailer 19£4,194 GBP
Retailer 9£4,198 GBP
Retailer 17£4,199 GBP
Retailer 4£4,225 GBP
Retailer 10£4,292 GBP
Retailer 12£4,381 GBP
Retailer 13£4,461 GBP
Retailer 8£4,481 GBP
Retailer 5£4,649 GBP
Retailer 6£4,649 GBP
Retailer 7£4,649 GBP
Retailer 3£4,767 GBP
Retailer 11£5,365 GBP
Retailer 15£5,713 GBP
Retailer 14£6,850 GBP
NZ Jewellers£7,777 GBP

20 data points across 19 retailers

22 retailers£3,379 GBP to £7,777 GBP

A
Cheapest Retailer
-
£3,379 GBP
₹431,840 INR
A
Retailer 2
-
£3,606 GBP
$4,839 USD
View
B+
Retailer 3
-
£3,926 GBP
$5,269 USD
View
B+
Retailer 4
-
£4,174 GBP
A$8,618 AUD
View
B+
Retailer 5
-
£4,194 GBP
$5,628 USD
View
B+
Retailer 6
-
£4,198 GBP
$5,634 USD
View
B+
Retailer 7
-
£4,199 GBP
$5,635 USD
View
B+
Retailer 8
-
£4,225 GBP
$5,670 USD
View
B
Retailer 9
-
£4,292 GBP
$5,759 USD
View
Final sale: no returns
B+
Retailer 10
-
£4,381 GBP
View
B+
Retailer 11
-
£4,461 GBP
View
B+
Retailer 12
-
£4,481 GBP
$6,013 USD
View
B+
Retailer 13
-
£4,649 GBP
$6,239 USD
View
B+
Retailer 14
-
£4,649 GBP
$6,239 USD
View
B+
Retailer 15
-
£4,649 GBP
$6,239 USD
View
B
Retailer 16
-
£4,767 GBP
$6,397 USD
View
Retailer 17
-
£4,773 GBP
A$9,853 AUD
View
Price last confirmed 23 days ago
Retailer 18
-
£4,827 GBP
$6,478 USD
View
Price last confirmed 21 days ago
B+
Retailer 19
-
£5,365 GBP
$7,199 USD
View
B
Retailer 20
-
£5,713 GBP
ZAR 123,846 ZAR
View
B
Retailer 21
-
£6,850 GBP
View
Most Expensive
B
NZ Jewellers
3d18db37-0de4-43b5-8421-52eaab264470 · Oct 30
£7,777 GBP
$10,436 USD
View
21 more retailers have this diamond
Prices start from £3,379 GBPSave up to £4,398 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
1.70ct Heart
£3,379 GBP