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Round|Natural|GIA

3.00ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 6421365546

Certificate GIA 6421365546

Diamond specifications and retailer prices

From £28,640 GBP
$38,375 USD
As of October 25, 2026
Save £23,599 GBP (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £52,239 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 very-good cut grade and certified by GIA 6421365546. Listed at 16 retailers as of October 25, 2026, with prices from £28,640 to £52,239, a £23,599 spread on the same certified stone. MOH London lists it at £52,239. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.00
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6421365546
Dimensions9.34 × 9.31 × 5.59 mm
L/W Ratio1.00
Top View
9.34 mm9.31 mm3.00 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421365546
Side View
Table 60.0%CrownGirdle: STK-FPavilionCulet: NoneDepth 59.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £52,239 GBP|Low: £28,640 GBP|High: £52,587 GBP|Avg: £36,139 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
October 30, 2026
Retailer 3£28,640 GBP
Retailer 7£30,038 GBP
Retailer 4£30,152 GBP
Retailer 6£31,499 GBP
Retailer 10£33,271 GBP
Retailer 9£33,281 GBP
Retailer 5£33,853 GBP
Retailer 11£34,657 GBP
Retailer 14£34,657 GBP
Retailer 12£36,043 GBP
Retailer 8£37,072 GBP
Retailer 15£37,429 GBP
Retailer 2£40,370 GBP
Retailer 13£42,901 GBP
MOH London£52,239 GBP

30 data points across 15 retailers

16 retailers£28,640 GBP to £52,239 GBP

B
Cheapest Retailer
-
£28,640 GBP
$38,375 USD
B
Retailer 2
-
£30,038 GBP
$40,247 USD
View
B
Retailer 3
-
£30,152 GBP
$40,400 USD
View
Retailer 4
-
£31,499 GBP
A$64,931 AUD
View
Price last confirmed 32 days ago
B
Retailer 5
-
£33,271 GBP
$44,579 USD
View
B
Retailer 6
-
£33,281 GBP
View
B
Retailer 7
-
£33,853 GBP
$45,359 USD
View
B
Retailer 8
-
£34,657 GBP
$46,436 USD
View
B
Retailer 9
-
£34,657 GBP
$46,436 USD
View
B
Retailer 10
-
£35,584 GBP
$47,678 USD
View
B
Retailer 11
-
£36,043 GBP
$48,294 USD
View
B
Retailer 12
-
£37,072 GBP
View
B
Retailer 13
-
£37,429 GBP
$50,151 USD
View
B
Retailer 14
-
£40,370 GBP
€51,515 EUR
View
B
Retailer 15
-
£42,901 GBP
ZAR 928,645 ZAR
View
Most Expensive
B
MOH London
7071A7C1A · Oct 29
£52,239 GBP
View
15 more retailers have this diamond
Prices start from £28,640 GBPSave up to £23,599 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
3.00ct Round
£28,640 GBP