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Round|Natural|GIA

3.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2557312305

Certificate GIA 2557312305

Diamond specifications and retailer prices

From £21,307 GBP
$28,549 USD
As of October 30, 2026
Save £11,982 GBP (36%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £33,289 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557312305. Listed at 14 retailers as of October 29, 2026, with prices from £21,307 to £33,289, a £11,982 spread on the same certified stone. MOH London lists it at £33,289. 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

3.00
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 2557312305
Dimensions9.05 × 9.12 × 5.78 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.05 mm9.12 mm3.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557312305
Side View
Table 55.0%Crown 36.5°Girdle: MediumPavilionCulet: NoneDepth 63.6%

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 30
Current: £33,289 GBP|Low: £21,168 GBP|High: £33,923 GBP|Avg: £25,021 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 10£21,307 GBP
Retailer 5£21,364 GBP
Retailer 4£21,413 GBP
Retailer 11£22,085 GBP
Retailer 7£22,647 GBP
Retailer 2£23,528 GBP
Retailer 3£24,573 GBP
Retailer 9£25,353 GBP
Retailer 6£25,687 GBP
Retailer 12£26,328 GBP
Retailer 8£27,339 GBP
MOH London£33,289 GBP

40 data points across 12 retailers

14 retailers£21,307 GBP to £33,289 GBP

A
Cheapest Retailer
-
£21,307 GBP
$28,549 USD
A
Retailer 2
-
£21,364 GBP
$28,626 USD
View
Final sale: no returns
Retailer 3
-
£21,413 GBP
A$44,141 AUD
View
Price last confirmed 28 days ago
Retailer 4
-
£22,085 GBP
$29,592 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£22,386 GBP
$29,995 USD
View
Price last confirmed 43 days ago
B+
Retailer 6
-
£22,647 GBP
$30,345 USD
View
B+
Retailer 7
-
£23,528 GBP
View
B+
Retailer 8
-
£24,573 GBP
$32,925 USD
View
Retailer 9
-
£25,353 GBP
$33,970 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£25,687 GBP
€32,779 EUR
View
Retailer 11
-
£26,328 GBP
$35,277 USD
View
Price last confirmed 9 days ago
Retailer 12
-
£26,687 GBP
$35,758 USD
View
Price last confirmed 43 days ago
B
Retailer 13
-
£27,339 GBP
ZAR 591,778 ZAR
View
Most Expensive
B
MOH London
31F277C67 · Oct 29
£33,289 GBP
View
13 more retailers have this diamond
Prices start from £21,307 GBPSave up to £11,982 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
3.00ct Round
£21,307 GBP