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Round|Lab Grown|IGI

0.51ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG836617387

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617387

Diamond specifications and retailer prices

From $140 USD
As of October 29, 2026
Save $1,163 USD (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,303 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617387 or 836617387. Listed at 12 retailers as of October 29, 2026, with prices from $140 to $1,303, a $1,163 spread on the same certified stone. MOH London lists it at $1,303. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617387
Dimensions5.06 × 5.11 × 3.14 mm
L/W Ratio1.01
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
5.06 mm5.11 mm0.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617387
Side View
Table 59.0%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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 29
Current: $1,303 USD|Low: $140 USD|High: $1,312 USD|Avg: $451 USD|-0.7%
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 29, 2026
Retailer 10$140 USD
Retailer 2$257 USD
Retailer 6$280 USD
Retailer 9$297 USD
Retailer 5$307 USD
Retailer 7$400 USD
Retailer 12$474 USD
Retailer 8$527 USD
Retailer 3$546 USD
Retailer 11$556 USD
Retailer 4$560 USD
MOH London$1,303 USD

23 data points across 12 retailers

12 retailers$140 USD to $1,303 USD

A
Cheapest Retailer
-
$140 USD
Final sale: no returns
A
Retailer 2
-
$257 USD
£203 GBP
View
A
Retailer 3
-
$280 USD
ZAR 4,531 ZAR
View
A
Retailer 4
-
$297 USD
View
A
Retailer 5
-
$307 USD
€292 EUR
View
B+
Retailer 6
-
$400 USD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
$474 USD
SGD 641 SGD
View
B
Retailer 8
-
$527 USD
View
B
Retailer 9
-
$538 USD
View
B
Retailer 10
-
$556 USD
View
B
Retailer 11
-
$560 USD
View
Most Expensive
B
MOH London
LG836617387 · Oct 29
$1,303 USD
£1,026 GBP
View
11 more retailers have this diamond
Prices start from $140 USDSave up to $1,163 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
0.51ct Round
$140 USD