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5.51ct H VS1 Round Natural Diamond

EX • H/VS1 • IGI 791617629

Shape and cutting style on the report: Round brilliant

Certificate IGI 791617629

Diamond specifications and retailer prices

From $81,035 USD
As of November 1, 2026
Save $51,641 USD (39%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $132,676 USD at MOH London · As of November 1, 2026
View at MOH London

About this 5.51ct natural round diamond

This 5.51ct 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 791617629. Listed at 4 retailers as of November 1, 2026, with prices from $81,035 to $132,676, a $51,641 spread on the same certified stone. MOH London lists it at $132,676. 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

5.51
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 791617629
Dimensions11.18 × 11.26 × 7.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
11.18 mm11.26 mm5.51 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 791617629
Side View
Table 57.0%Crown 36.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $132,676 USD|Low: $81,035 USD|High: $138,102 USD|Avg: $108,902 USD|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5$81,035 USD
Retailer 2$86,679 USD
Retailer 3$102,621 USD
Retailer 4$118,500 USD
MOH London$132,676 USD

43 data points across 5 retailers

4 retailers$81,035 USD to $132,676 USD

A
Cheapest Retailer
-
$81,035 USD
A
Retailer 2
-
$86,679 USD
£68,251 GBP
View
A
Retailer 3
-
$102,621 USD
€97,734 EUR
View
Most Expensive
B+
MOH London
506DED82D · Nov 1
$132,676 USD
£104,469 GBP
View
3 more retailers have this diamond
Prices start from $81,035 USDSave up to $51,641 USD

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
5.51ct Round
$81,035 USD