Marquise|Lab Grown|IGI

1.17ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG845669343

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845669343

Diamond specifications and retailer prices

From $218 USD
HK$1,700 HKD
As of October 30, 2026
Save $462 USD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $680 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.17ct lab-grown marquise diamond

This 1.17ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG845669343 or 845669343. Listed at 12 retailers as of October 30, 2026, with prices from $218 to $680, a $462 spread on the same certified stone. Brilliant Earth lists it at $680. 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

1.17
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845669343
Dimensions10.52 × 5.47 × 3.58 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.52 mm5.47 mm1.17 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG845669343
Side View
Table 63.0%Crown 33.8°Girdle: STK-THKPavilion 42°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $615 USD|Low: $152 USD|High: $639 USD|Avg: $350 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 9$152 USD
Retailer 10$169 USD
Retailer 3$218 USD
Retailer 5$245 USD
Retailer 8$320 USD
Retailer 6$326 USD
Retailer 12$344 USD
Retailer 4$380 USD
Retailer 7$414 USD
Retailer 1$615 USD
Retailer 2$622 USD
Retailer 11$639 USD

7 data points across 12 retailers

12 retailers$218 USD to $680 USD

Retailer 1
-
$152 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$218 USD
HK$1,700 HKD
View
A
Retailer 3
-
$245 USD
£193 GBP
View
B+
Retailer 4
-
$320 USD
€305 EUR
View
B+
Retailer 5
-
$326 USD
£256 GBP
View
B+
Retailer 6
-
$344 USD
View
B+
Retailer 7
-
$380 USD
View
B+
Retailer 8
-
$414 USD
£326 GBP
View
B
Retailer 9
-
$615 USD
View
B
Retailer 10
-
$622 USD
SGD 841 SGD
View
B
Retailer 11
-
$639 USD
View
Most Expensive
B
Brilliant Earth
22241524A · Oct 31
$680 USD
View
11 more retailers have this diamond
Prices start from $218 USDSave up to $462 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
1.17ct Marquise
$218 USD