CaratHunter
Plans
Round|Lab Grown|IGI

5.15ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • IGI LG512235621

Shape and cutting style on the report: Round brilliant

Certificate IGI LG512235621

Diamond specifications and retailer prices

From €570 EUR
$637 USD
As of November 1, 2026
Save €2,233 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,803 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 5.15ct lab-grown round diamond

This 5.15ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512235621 or 512235621. Listed at 13 retailers as of October 29, 2026, with prices from €570 to €2,803, a €2,233 spread on the same certified stone. MOH London lists it at €2,803. 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

5.15
Carat
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512235621
Dimensions11.08 × 11.12 × 6.89 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.08 mm11.12 mm5.15 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512235621
Side View
Table 55.5%Crown 32.5°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 62.1%

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: Nov 1
Current: €2,803 EUR|Low: €570 EUR|High: €26,304 EUR|Avg: €1,798 EUR|-2.9%
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
November 1, 2026
Retailer 9€570 EUR
Retailer 2€591 EUR
Retailer 7€621 EUR
Retailer 13€638 EUR
Retailer 11€661 EUR
Retailer 5€980 EUR
Retailer 10€1,011 EUR
Retailer 6€1,054 EUR
Retailer 12€1,586 EUR
Retailer 8€1,691 EUR
Retailer 4€1,861 EUR
Retailer 3€2,685 EUR
MOH London€2,803 EUR

13 data points across 13 retailers

13 retailers€570 EUR to €2,803 EUR

A
Cheapest Retailer
-
€570 EUR
$637 USD
A
Retailer 2
-
€591 EUR
£520 GBP
View
A
Retailer 3
-
€621 EUR
$694 USD
View
A
Retailer 4
-
€638 EUR
$713 USD
View
Final sale: no returns
A
Retailer 5
-
€661 EUR
$739 USD
View
B+
Retailer 6
-
€980 EUR
$1,095 USD
View
B+
Retailer 7
-
€1,011 EUR
$1,130 USD
View
B+
Retailer 8
-
€1,054 EUR
£927 GBP
View
B
Retailer 9
-
€1,586 EUR
$1,772 USD
View
B
Retailer 10
-
€1,691 EUR
$1,889 USD
View
B
Retailer 11
-
€1,861 EUR
$2,079 USD
View
B
Retailer 12
-
€2,685 EUR
$3,000 USD
View
Most Expensive
B
MOH London
LG512235621 · Oct 29
€2,803 EUR
£2,466 GBP
View
12 more retailers have this diamond
Prices start from €570 EURSave up to €2,233 EUR

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
5.15ct Round
€570 EUR