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Marquise|Lab Grown|IGI

1.61ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG837693689

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837693689

Diamond specifications and retailer prices

From £750 GBP
$999 USD
As of October 29, 2026
Save £1,253 GBP (63%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,003 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.61ct lab-grown marquise diamond

This 1.61ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG837693689 or 837693689. Listed at 8 retailers as of October 29, 2026, with prices from £750 to £2,003, a £1,253 spread on the same certified stone. With Clarity lists it at £2,003. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837693689
Dimensions11.52 × 6.30 × 3.90 mm
L/W Ratio1.83
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
11.52 mm6.30 mm1.61 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837693689
Side View
Table 56.0%Crown 33.8°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 61.9%

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: £902 GBP|Low: £750 GBP|High: £2,003 GBP|Avg: £1,328 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 30, 2026
Retailer 6£750 GBP
Retailer 1£902 GBP
Retailer 2£921 GBP
Retailer 5£945 GBP
Retailer 3£969 GBP
Retailer 4£1,877 GBP
Retailer 7£1,947 GBP
With Clarity£2,003 GBP

9 data points across 8 retailers

8 retailers£750 GBP to £2,003 GBP

A
Cheapest Retailer
-
£750 GBP
$999 USD
A
Retailer 2
-
£902 GBP
View
A
Retailer 3
-
£921 GBP
$1,226 USD
View
A
Retailer 4
-
£945 GBP
$1,258 USD
View
A
Retailer 5
-
£969 GBP
€1,229 EUR
View
B+
Retailer 6
-
£1,877 GBP
$2,500 USD
View
B+
Retailer 7
-
£1,947 GBP
$2,592 USD
View
Most Expensive
B
With Clarity
837693689 · Oct 30
£2,003 GBP
$2,668 USD
View
7 more retailers have this diamond
Prices start from £750 GBPSave up to £1,253 GBP

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
1.61ct Marquise
£750 GBP