Marquise|Lab Grown|IGI

1.00ct E IF Marquise Lab Grown Diamond

VG • E/IF • IGI LG801684843

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801684843

Diamond specifications and retailer prices

From $220 USD
As of October 30, 2026
Save $1,456 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,676 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG801684843 or 801684843. Listed at 21 retailers as of October 27, 2026, with prices from $220 to $1,676, a $1,456 spread on the same certified stone. Queensmith lists it at $1,676. 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

1.00
Carat
E
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.5°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801684843
Dimensions9.71 × 5.01 × 3.34 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.71 mm5.01 mm1.00 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG801684843
Side View
Table 55.0%Crown 40.5°Girdle: STK-THKPavilion 38.3°Culet: NoneDepth 66.7%

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 30
Current: $245 USD|Low: $215 USD|High: $1,257 USD|Avg: $558 USD|-16.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 4$220 USD
Retailer 1$245 USD
Retailer 7$272 USD
Retailer 11$272 USD
Retailer 15$368 USD
Retailer 9$468 USD
Retailer 10$475 USD
Retailer 8$505 USD
Retailer 2$506 USD
Retailer 3$558 USD
Retailer 14$879 USD
Retailer 5$929 USD
Retailer 12$1,093 USD
Retailer 13$1,100 USD
Retailer 6$1,257 USD

43 data points across 15 retailers

21 retailers$220 USD to $1,676 USD

Retailer 1
-
$215 USD
Price last confirmed 30 days ago
Retailer 2
-
$220 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$220 USD
View
A
Retailer 4
-
$245 USD
View
Final sale: no returns
Retailer 5
-
$250 USD
View
Price last confirmed 31 days ago
Retailer 6
-
$263 USD
View
Price last confirmed 31 days ago
A
Retailer 7
-
$272 USD
View
Retailer 8
-
$272 USD
View
Price last confirmed 11 days ago
A
Retailer 9
-
$368 USD
View
A
Retailer 10
-
$468 USD
ZAR 7,563 ZAR
View
A
Retailer 11
-
$475 USD
€452 EUR
View
A
Retailer 12
-
$505 USD
£398 GBP
View
A
Retailer 13
-
$506 USD
View
B+
Retailer 14
-
$558 USD
View
Retailer 15
-
$858 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$879 USD
View
B
Retailer 17
-
$929 USD
View
B
Retailer 18
-
$1,093 USD
£861 GBP
View
B
Retailer 19
-
$1,100 USD
View
B
Retailer 20
-
$1,257 USD
View
Most Expensive
B
Queensmith
LG801684843 · Oct 27
$1,676 USD
£1,320 GBP
View
20 more retailers have this diamond
Prices start from $220 USDSave up to $1,456 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
1.00ct Marquise
$220 USD