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Heart|Natural|GIA

1.71ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 1535936662

Certificate GIA 1535936662

Diamond specifications and retailer prices

From £4,607 GBP
HK$48,300 HKD
As of November 2, 2026
Save £4,597 GBP (50%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £10,234 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.71ct natural heart diamond

This 1.71ct 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1535936662. Listed at 21 retailers as of October 28, 2026, with a 100% 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

1.71
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1535936662
Dimensions7.60 × 8.30 × 4.72 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather
Top View
7.60 mm8.30 mm1.71 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1535936662
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.8%

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: Nov 2
Current: £10,234 GBP|Low: £4,607 GBP|High: £10,234 GBP|Avg: £6,463 GBP
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
November 2, 2026
Retailer 12£4,607 GBP
Retailer 11£4,864 GBP
Retailer 5£5,015 GBP
Retailer 9£5,299 GBP
Retailer 6£5,489 GBP
Retailer 15£5,596 GBP
Retailer 18£5,634 GBP
Retailer 8£5,649 GBP
Retailer 16£5,720 GBP
Retailer 4£5,866 GBP
Retailer 10£6,119 GBP
Retailer 14£6,191 GBP
Retailer 13£6,623 GBP
Retailer 7£7,061 GBP
Retailer 17£7,517 GBP
Retailer 2£8,449 GBP
Retailer 3£9,204 GBP
NZ Jewellers£10,234 GBP

28 data points across 18 retailers

21 retailers£4,607 GBP to £9,204 GBP

B+
Cheapest Retailer
-
£4,607 GBP
HK$48,300 HKD
B+
Retailer 2
-
£4,864 GBP
₹621,701 INR
View
B+
Retailer 3
-
£5,015 GBP
$6,730 USD
View
Retailer 4
-
£5,299 GBP
SGD 9,610 SGD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
£5,489 GBP
SGD 9,954 SGD
View
B+
Retailer 6
-
£5,596 GBP
$7,510 USD
View
Final sale: no returns
B+
Retailer 7
-
£5,634 GBP
$7,560 USD
View
Retailer 8
-
£5,649 GBP
$7,580 USD
View
Price last confirmed 17 days ago
B
Retailer 9
-
£5,656 GBP
$7,590 USD
View
B+
Retailer 10
-
£5,720 GBP
View
Retailer 11
-
£5,866 GBP
A$12,110 AUD
View
Price last confirmed 11 days ago
B
Retailer 12
-
£5,904 GBP
A$12,188 AUD
View
Retailer 13
-
£6,119 GBP
$8,211 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
£6,191 GBP
$8,308 USD
View
Retailer 15
-
£6,213 GBP
$8,338 USD
View
Price last confirmed 16 days ago
B
Retailer 16
-
£6,623 GBP
€8,464 EUR
View
Retailer 17
-
£7,061 GBP
$9,475 USD
View
Price last confirmed 14 days ago
B
Retailer 18
-
£7,517 GBP
ZAR 162,968 ZAR
View
B
Retailer 19
-
£8,449 GBP
View
B
Retailer 20
-
£9,204 GBP
View
Most Expensive
NZ Jewellers
fbb058b2-f930-4aab-84d7-0a9d6150eccd · Oct 18
£10,234 GBP
$13,734 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from £4,607 GBPSave up to £4,597 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.

B+
1.71ct Heart
£4,607 GBP