Marquise|Lab Grown|IGI

4.00ct G SI1 Marquise Lab Grown Diamond

VG • G/SI1 • IGI LG571308075

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG571308075

Diamond specifications and retailer prices

From $1,167 USD
As of October 31, 2026
Save $3,369 USD (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,536 USD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 4ct lab-grown marquise diamond

This 4ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG571308075 or 571308075. Listed at 6 retailers as of October 31, 2026, with prices from $1,167 to $4,536, a $3,369 spread on the same certified stone. Michael Trio lists it at $4,536. 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

4.00
Carat
G
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571308075
Dimensions15.61 × 8.62 × 4.93 mm
L/W Ratio1.81
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
15.61 mm8.62 mm4.00 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG571308075
Side View
Table 58.0%Crown 32.5°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 57.2%

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 31
Current: $4,536 USD|Low: $1,167 USD|High: $4,536 USD|Avg: $2,195 USD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$1,167 USD
Retailer 6$1,507 USD
Retailer 5$1,562 USD
Retailer 3$1,965 USD
Retailer 2$2,960 USD
Michael Trio$4,536 USD

9 data points across 6 retailers

6 retailers$1,167 USD to $4,536 USD

B+
Cheapest Retailer
-
$1,167 USD
B+
Retailer 2
-
$1,507 USD
View
B
Retailer 3
-
$1,562 USD
HK$12,200 HKD
View
B
Retailer 4
-
$1,965 USD
€1,871 EUR
View
B
Retailer 5
-
$2,960 USD
View
Most Expensive
C
Michael Trio
1469987870 · Oct 31
$4,536 USD
SGD 6,130 SGD
View
5 more retailers have this diamond
Prices start from $1,167 USDSave up to $3,369 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+
4.00ct Marquise
$1,167 USD