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Round|Natural|GIA

5.03ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1226153136

Certificate GIA 1226153136

Diamond specifications and retailer prices

From £66,182 GBP
$88,677 USD
As of October 30, 2026
Save £48,485 GBP (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £114,668 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.03ct natural round diamond

This 5.03ct natural round sits in the over five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1226153136. Listed at 14 retailers as of October 29, 2026, with prices from £66,182 to £114,668, a £48,485 spread on the same certified stone. MOH London lists it at £114,668. 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

5.03
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1226153136
Dimensions11.10 × 11.02 × 6.63 mm
L/W Ratio1.01
Culet sizeNone
Top View
11.10 mm11.02 mm5.03 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1226153136
Side View
Table 61.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 59.9%

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: £114,668 GBP|Low: £64,080 GBP|High: £115,431 GBP|Avg: £78,112 GBP|+0.4%
MOH London
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
October 31, 2026
Retailer 13£66,182 GBP
Retailer 3£66,944 GBP
Retailer 9£69,160 GBP
Retailer 2£72,645 GBP
Retailer 16£73,031 GBP
Retailer 5£75,103 GBP
Retailer 6£75,103 GBP
Retailer 4£76,073 GBP
Retailer 12£76,073 GBP
Retailer 7£77,603 GBP
Retailer 15£79,117 GBP
Retailer 10£81,278 GBP
Retailer 8£82,074 GBP
Retailer 14£82,160 GBP
Retailer 11£88,161 GBP
MOH London£114,668 GBP

37 data points across 16 retailers

14 retailers£66,182 GBP to £114,668 GBP

B+
Cheapest Retailer
-
£66,182 GBP
$88,677 USD
B+
Retailer 2
-
£66,944 GBP
$89,698 USD
View
Final sale: no returns
B+
Retailer 3
-
£69,160 GBP
$92,667 USD
View
B+
Retailer 4
-
£72,645 GBP
View
B
Retailer 5
-
£73,031 GBP
$97,853 USD
View
B+
Retailer 6
-
£75,103 GBP
$100,630 USD
View
B+
Retailer 7
-
£75,103 GBP
$100,630 USD
View
B+
Retailer 8
-
£76,073 GBP
$101,930 USD
View
B+
Retailer 9
-
£76,073 GBP
$101,930 USD
View
B
Retailer 10
-
£77,603 GBP
$103,980 USD
View
B
Retailer 11
-
£79,117 GBP
$106,008 USD
View
B
Retailer 12
-
£81,278 GBP
$108,903 USD
View
B
Retailer 13
-
£82,160 GBP
$110,085 USD
View
Most Expensive
B
MOH London
BA024475C · Oct 29
£114,668 GBP
View
13 more retailers have this diamond
Prices start from £66,182 GBPSave up to £48,485 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+
5.03ct Round
£66,182 GBP