Heart|Natural|GIA

1.70ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 6531454705

Certificate GIA 6531454705

Diamond specifications and retailer prices

From £6,428 GBP

$8,613 USD

As of October 30, 2026

Save £5,156 GBP (45%) vs most expensive(unlock to see where)

18 retailers carry this diamond

Most expensive: £11,585 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6531454705. Listed at 18 retailers as of October 30, 2026, with prices from £6,428 to £11,585, a £5,156 spread on the same certified stone. NZ Jewellers lists it at £11,585. 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

1.70

Carat

Colour

SI2

Clarity

Excellent

Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Pavilion angle39.8°

OriginNatural

Grading LabGIA

CertificateGIA 6531454705

Dimensions7.39 × 8.15 × 4.72 mm

L/W Ratio1.10

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 6531454705

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30

Current: £11,585 GBP|Low: £6,951 GBP|High: £11,585 GBP|Avg: £8,695 GBP

NZ Jewellers

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

November 1, 2026

Retailer 8£6,951 GBP

Retailer 10£7,009 GBP

Retailer 7£7,530 GBP

Retailer 4£7,607 GBP

Retailer 6£7,646 GBP

Retailer 5£8,318 GBP

Retailer 9£8,689 GBP

Retailer 11£9,148 GBP

Retailer 3£9,908 GBP

Retailer 2£10,856 GBP

NZ Jewellers£11,585 GBP

43 data points across 11 retailers

18 retailers£6,428 GBP to £11,585 GBP

B+

Cheapest Retailer

£6,428 GBP

$8,613 USD

B+

Retailer 2

£6,508 GBP

$8,720 USD

View

B+

Retailer 3

£6,511 GBP

A$13,422 AUD

View

B+

Retailer 4

£6,739 GBP

CA$12,541 CAD

View

B+

Retailer 5

£6,951 GBP

$9,313 USD

View

B+

Retailer 6

£7,009 GBP

$9,391 USD

View

B+

Retailer 7

£7,530 GBP

$10,089 USD

View

B+

Retailer 8

£7,607 GBP

View

B+

Retailer 9

£7,646 GBP

$10,245 USD

View

Retailer 10

£8,012 GBP

$10,735 USD

View

Retailer 11

£8,180 GBP

$10,960 USD

View

Retailer 12

£8,180 GBP

$10,960 USD

View

Retailer 13

£8,318 GBP

€10,615 EUR

View

Retailer 14

£8,448 GBP

$11,320 USD

View

Retailer 15

£8,689 GBP

$11,642 USD

View

Retailer 16

£9,148 GBP

$12,257 USD

View

Price last confirmed 9 days ago

Retailer 17

£10,856 GBP

View

Most Expensive

NZ Jewellers

21c0fa02-08f9-493f-9a00-f5ccc72755ee · Oct 30

£11,585 GBP

$15,522 USD

View

17 more retailers have this diamond

Prices start from £6,428 GBPSave up to £5,156 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.

Similar diamonds

B+

1.70ct Heart

£6,428 GBP