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Marquise|Lab Grown|IGI

1.61ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG741594945

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG741594945

Diamond specifications and retailer prices

From £478 GBP
$640 USD
As of October 30, 2026
Save £3,762 GBP (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,239 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741594945 or 741594945. Listed at 19 retailers as of October 30, 2026, with prices from £478 to £4,239, a £3,762 spread on the same certified stone. Do Amore Diamonds lists it at £4,239. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741594945
Dimensions11.88 × 6.11 × 3.84 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
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
11.88 mm6.11 mm1.61 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741594945
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.8%

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: £4,239 GBP|Low: £468 GBP|High: £4,329 GBP|Avg: £1,475 GBP|-2.1%
Do Amore Diamonds
Retailer 2
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Retailer 19
November 1, 2026
Retailer 18£478 GBP
Retailer 7£519 GBP
Retailer 11£572 GBP
Retailer 3£672 GBP
Retailer 8£690 GBP
Retailer 2£691 GBP
Retailer 10£736 GBP
Retailer 19£905 GBP
Retailer 15£997 GBP
Retailer 9£1,023 GBP
Retailer 4£1,415 GBP
Retailer 13£1,523 GBP
Retailer 6£1,643 GBP
Retailer 5£1,720 GBP
Retailer 17£2,034 GBP
Retailer 14£2,321 GBP
Retailer 16£2,414 GBP
Retailer 12£2,738 GBP
Do Amore Diamonds£4,239 GBP

41 data points across 19 retailers

19 retailers£478 GBP to £4,239 GBP

A
Cheapest Retailer
-
£478 GBP
$640 USD
A
Retailer 2
-
£519 GBP
$696 USD
View
A
Retailer 3
-
£572 GBP
$766 USD
View
Final sale: no returns
A
Retailer 4
-
£672 GBP
$901 USD
View
A
Retailer 5
-
£690 GBP
$925 USD
View
A
Retailer 6
-
£691 GBP
View
A
Retailer 7
-
£736 GBP
$986 USD
View
A
Retailer 8
-
£905 GBP
$1,213 USD
View
A
Retailer 9
-
£997 GBP
€1,272 EUR
View
A
Retailer 10
-
£1,023 GBP
A$2,108 AUD
View
B+
Retailer 11
-
£1,415 GBP
$1,896 USD
View
B+
Retailer 12
-
£1,523 GBP
A$3,139 AUD
View
B+
Retailer 13
-
£1,643 GBP
$2,202 USD
View
B+
Retailer 14
-
£1,720 GBP
$2,304 USD
View
B+
Retailer 15
-
£2,034 GBP
$2,725 USD
View
B+
Retailer 16
-
£2,321 GBP
$3,110 USD
View
B+
Retailer 17
-
£2,414 GBP
View
B+
Retailer 18
-
£2,738 GBP
A$5,643 AUD
View
Most Expensive
B
Do Amore Diamonds
27-040AD9B70 · Nov 1
£4,239 GBP
$5,680 USD
View
18 more retailers have this diamond
Prices start from £478 GBPSave up to £3,762 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
£478 GBP