Round|Natural|IGI

15.05ct H VS1 Round Natural Diamond

EX • H/VS1 • IGI 809692650

Shape and cutting style on the report: Round brilliant

Certificate IGI 809692650

Diamond specifications and retailer prices

From £393,238 GBP
$526,895 USD
As of November 1, 2026
Save £112,921 GBP (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £520,326 GBP at Aurelinne · As of September 29, 2026
View at Aurelinne

About this 15.05ct natural round diamond

This 15.05ct natural round sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI 809692650. Listed at 10 retailers as of November 1, 2026, with a 29% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

15.05
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 809692650
Dimensions15.75 × 15.84 × 9.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
15.75 mm15.84 mm15.05 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 809692650
Side View
Table 59.0%Crown 34.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.6%

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: Nov 1
Current: £520,326 GBP|Low: £382,120 GBP|High: £520,326 GBP|Avg: £442,246 GBP
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£383,386 GBP
Retailer 5£393,238 GBP
Retailer 3£404,433 GBP
Retailer 6£416,260 GBP
Retailer 8£440,868 GBP
Retailer 7£462,511 GBP
Retailer 2£506,158 GBP
Aurelinne£520,326 GBP

41 data points across 8 retailers

10 retailers£393,238 GBP to £506,158 GBP

Retailer 1
-
£383,386 GBP
₹48,923,331 INR
Price last confirmed 8 days ago
Retailer 2
-
£393,238 GBP
$526,895 USD
View
B+
Retailer 3
-
£404,433 GBP
View
B+
Retailer 4
-
£416,260 GBP
$557,742 USD
View
Final sale: no returns
Retailer 5
-
£436,472 GBP
$584,825 USD
View
Price last confirmed 34 days ago
B+
Retailer 6
-
£440,868 GBP
$590,715 USD
View
Retailer 7
-
£481,783 GBP
$645,536 USD
View
Price last confirmed 33 days ago
Retailer 8
-
£501,054 GBP
$671,357 USD
View
Price last confirmed 31 days ago
B
Retailer 9
-
£506,158 GBP
€645,901 EUR
View
Most Expensive
Aurelinne
ce4ced51-46c3-4d48-b3b0-692bf0c0f87b · Sep 29
£520,326 GBP
$697,179 USD
View
Price last confirmed 33 days ago
9 more retailers have this diamond
Prices start from £393,238 GBPSave up to £112,921 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+
15.05ct Round
£393,238 GBP