Heart|Natural|GIA

0.90ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 6552108291

Certificate GIA 6552108291

Diamond specifications and retailer prices

From £755 GBP
HK$7,900 HKD
As of October 30, 2026
Save £588 GBP (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,474 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552108291. Listed at 14 retailers as of October 30, 2026, with a 78% 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

0.90
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552108291
Dimensions5.86 × 6.51 × 4.10 mm
L/W Ratio1.11
Top View
5.86 mm6.51 mm0.90 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552108291
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £988 GBP|Low: £726 GBP|High: £1,858 GBP|Avg: £1,186 GBP|-8.2%
Retailer 1
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
October 31, 2026
Retailer 9£755 GBP
Retailer 12£921 GBP
Retailer 7£932 GBP
Retailer 8£979 GBP
Retailer 1£988 GBP
Retailer 11£1,064 GBP
Retailer 13£1,078 GBP
Retailer 3£1,131 GBP
Retailer 5£1,219 GBP
Retailer 6£1,223 GBP
Retailer 4£1,368 GBP
Retailer 14£1,380 GBP
Retailer 10£1,525 GBP
Retailer 2£1,844 GBP

33 data points across 14 retailers

14 retailers£755 GBP to £1,343 GBP

A
Cheapest Retailer
-
£755 GBP
HK$7,900 HKD
A
Retailer 2
-
£921 GBP
$1,234 USD
View
Final sale: no returns
A
Retailer 3
-
£932 GBP
€1,189 EUR
View
A
Retailer 4
-
£970 GBP
$1,300 USD
View
A
Retailer 5
-
£979 GBP
$1,312 USD
View
A
Retailer 6
-
£988 GBP
View
Retailer 7
-
£1,064 GBP
SGD 1,926 SGD
View
Price last confirmed 8 days ago
Retailer 8
-
£1,219 GBP
A$2,513 AUD
View
Price last confirmed 27 days ago
Retailer 9
-
£1,223 GBP
View
Price last confirmed 34 days ago
B+
Retailer 10
-
£1,343 GBP
A$2,768 AUD
View
Retailer 11
-
£1,368 GBP
ZAR 29,614 ZAR
View
Price last confirmed 27 days ago
Retailer 12
-
£1,525 GBP
$2,043 USD
View
Price last confirmed 7 days ago
Retailer 13
-
£1,844 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
e64961a9-718b-4333-80f2-ea8b576c5fb2 · Sep 25
£2,474 GBP
$3,315 USD
View
Price last confirmed 35 days ago
13 more retailers have this diamond
Prices start from £755 GBPSave up to £588 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
0.90ct Heart
£755 GBP