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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5556485439

Certificate GIA 5556485439

Diamond specifications and retailer prices

From £3,520 GBP
As of November 6, 2026
Save £1,620 GBP (32%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,140 GBP at Jared · As of November 6, 2026
View at Jared

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 5556485439. Listed at 11 retailers as of November 6, 2026, with prices from £3,520 to £5,140, a £1,620 spread on the same certified stone. Jared lists it at £5,140. 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

1.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5556485439
Dimensions7.24 × 7.30 × 4.56 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Indented Natural
Top View
7.24 mm7.30 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5556485439
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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: Nov 6
Current: £5,140 GBP|Low: £3,520 GBP|High: £5,140 GBP|Avg: £4,064 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£3,520 GBP
Retailer 9£3,848 GBP
Retailer 4£4,083 GBP
Retailer 8£4,182 GBP
Retailer 6£4,365 GBP
Retailer 3£4,495 GBP
Retailer 5£4,976 GBP
Retailer 7£4,976 GBP
Jared£5,140 GBP

46 data points across 9 retailers

11 retailers£3,520 GBP to £5,140 GBP

A
Cheapest Retailer
-
£3,520 GBP
Retailer 2
-
£3,848 GBP
View
Price last confirmed 19 days ago
A
Retailer 3
-
£4,083 GBP
View
Final sale: no returns
B+
Retailer 4
-
£4,182 GBP
View
B+
Retailer 5
-
£4,365 GBP
View
B+
Retailer 6
-
£4,433 GBP
View
B+
Retailer 7
-
£4,476 GBP
View
B+
Retailer 8
-
£4,495 GBP
View
B+
Retailer 9
-
£4,976 GBP
View
B+
Retailer 10
-
£4,976 GBP
View
Most Expensive
B
Jared
160293280 · Nov 6
£5,140 GBP
$6,880 USD
View
10 more retailers have this diamond
Prices start from £3,520 GBPSave up to £1,620 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
1.50ct Round
£3,520 GBP