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Heart|Natural|GIA

0.90ct H SI2 Heart Natural Diamond

ID • H/SI2 • GIA 5553589758

Certificate GIA 5553589758

Diamond specifications and retailer prices

From £777 GBP
$1,041 USD
As of October 28, 2026
Save £1,692 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,469 GBP at Moon Ocean · As of October 29, 2026
View at Moon Ocean

About this 0.9ct natural heart diamond

This 0.9ct natural heart sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553589758. Listed at 15 retailers as of October 28, 2026, with prices from £777 to £2,469, a £1,692 spread on the same certified stone. Moon Ocean lists it at £2,469. 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
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553589758
Dimensions6.62 × 5.77 × 3.89 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.62 mm5.77 mm0.90 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553589758
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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: Oct 28
Current: £2,469 GBP|Low: £650 GBP|High: £2,469 GBP|Avg: £1,175 GBP|+0.3%
Moon Ocean
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
October 29, 2026
Retailer 6£777 GBP
Retailer 7£780 GBP
Retailer 4£786 GBP
Retailer 9£799 GBP
Retailer 2£860 GBP
Retailer 12£860 GBP
Retailer 11£893 GBP
Retailer 13£967 GBP
Retailer 8£982 GBP
Retailer 16£1,030 GBP
Retailer 17£1,030 GBP
Retailer 18£1,067 GBP
Retailer 3£1,163 GBP
Retailer 10£1,265 GBP
Retailer 15£1,324 GBP
Retailer 14£1,747 GBP
Retailer 5£2,292 GBP
Moon Ocean£2,469 GBP

30 data points across 18 retailers

15 retailers£777 GBP to £2,469 GBP

A
Cheapest Retailer
-
£777 GBP
$1,041 USD
Retailer 2
-
£780 GBP
$1,045 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
£799 GBP
$1,070 USD
View
A
Retailer 4
-
£860 GBP
$1,152 USD
View
A
Retailer 5
-
£893 GBP
$1,196 USD
View
B+
Retailer 6
-
£967 GBP
$1,296 USD
View
Retailer 7
-
£982 GBP
$1,316 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
£1,030 GBP
$1,380 USD
View
B+
Retailer 9
-
£1,030 GBP
$1,380 USD
View
B+
Retailer 10
-
£1,067 GBP
$1,430 USD
View
Retailer 11
-
£1,163 GBP
View
Price last confirmed 11 days ago
B+
Retailer 12
-
£1,324 GBP
€1,689 EUR
View
B
Retailer 13
-
£1,747 GBP
View
Retailer 14
-
£2,292 GBP
$3,071 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Moon Ocean
NVN-99C44B920-758 · Oct 29
£2,469 GBP
View
14 more retailers have this diamond
Prices start from £777 GBPSave up to £1,692 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
£777 GBP