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Round|Lab Grown|IGI

0.50ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • IGI LG425066218

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425066218

Diamond specifications and retailer prices

From $270 USD
As of October 29, 2026
Save $1,077 USD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,347 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.5ct lab-grown round diamond

This 0.5ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG425066218 or 425066218. Listed at 11 retailers as of October 29, 2026, with prices from $270 to $1,347, a $1,077 spread on the same certified stone. MOH London lists it at $1,347. 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

0.50
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425066218
Dimensions4.99 × 4.94 × 3.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.99 mm4.94 mm0.50 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425066218
Side View
Table 55.5%Crown 37.2°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.5%

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: Oct 29
Current: $1,347 USD|Low: $259 USD|High: $1,356 USD|Avg: $548 USD|+0.6%
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 6$270 USD
Retailer 4$283 USD
Retailer 10$302 USD
Retailer 11$313 USD
Retailer 7$320 USD
Retailer 8$334 USD
Retailer 12$495 USD
Retailer 9$555 USD
Retailer 2$627 USD
Retailer 3$685 USD
Retailer 5$1,027 USD
MOH London$1,347 USD

18 data points across 12 retailers

11 retailers$270 USD to $1,347 USD

B+
Cheapest Retailer
-
$270 USD
B+
Retailer 2
-
$302 USD
View
Final sale: no returns
B+
Retailer 3
-
$313 USD
View
B+
Retailer 4
-
$320 USD
View
B+
Retailer 5
-
$334 USD
View
B+
Retailer 6
-
$334 USD
View
B
Retailer 7
-
$555 USD
View
B
Retailer 8
-
$627 USD
€597 EUR
View
Retailer 9
-
$1,027 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
$1,075 USD
View
Most Expensive
B
MOH London
LG425066218 · Oct 29
$1,347 USD
£1,061 GBP
View
10 more retailers have this diamond
Prices start from $270 USDSave up to $1,077 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.

B+
0.50ct Round
$270 USD