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Marquise|Lab Grown|IGI

1.67ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG720590613

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG720590613

Diamond specifications and retailer prices

From £463 GBP
$621 USD
As of October 30, 2026
Save £3,649 GBP (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,112 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.67ct lab-grown marquise diamond

This 1.67ct 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 very-good cut grade and certified by IGI LG720590613 or 720590613. Listed at 17 retailers as of October 30, 2026, with prices from £463 to £4,112, a £3,649 spread on the same certified stone. Do Amore Diamonds lists it at £4,112. 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

1.67
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720590613
Dimensions11.90 × 6.15 × 3.96 mm
L/W Ratio1.93
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
11.90 mm6.15 mm1.67 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720590613
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 64.4%

Caratlytics Score

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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: £4,112 GBP|Low: £455 GBP|High: £4,627 GBP|Avg: £1,559 GBP|-11.1%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 17
October 31, 2026
Retailer 13£463 GBP
Retailer 4£519 GBP
Retailer 9£591 GBP
Retailer 15£667 GBP
Retailer 6£668 GBP
Retailer 8£778 GBP
Retailer 14£880 GBP
Retailer 11£965 GBP
Retailer 16£1,426 GBP
Retailer 2£1,478 GBP
Retailer 3£1,598 GBP
Retailer 17£1,669 GBP
Retailer 12£2,026 GBP
Retailer 5£2,391 GBP
Retailer 10£2,403 GBP
Retailer 7£2,850 GBP
Do Amore Diamonds£4,112 GBP

32 data points across 17 retailers

17 retailers£463 GBP to £4,112 GBP

A
Cheapest Retailer
-
£463 GBP
$621 USD
A
Retailer 2
-
£519 GBP
$696 USD
View
A
Retailer 3
-
£591 GBP
$792 USD
View
Final sale: no returns
A
Retailer 4
-
£667 GBP
$894 USD
View
A
Retailer 5
-
£668 GBP
$895 USD
View
A
Retailer 6
-
£778 GBP
$1,042 USD
View
A
Retailer 7
-
£880 GBP
$1,179 USD
View
A
Retailer 8
-
£965 GBP
€1,232 EUR
View
B+
Retailer 9
-
£1,426 GBP
$1,911 USD
View
B+
Retailer 10
-
£1,478 GBP
A$3,046 AUD
View
B+
Retailer 11
-
£1,598 GBP
$2,141 USD
View
B+
Retailer 12
-
£1,669 GBP
$2,236 USD
View
B+
Retailer 13
-
£2,026 GBP
$2,715 USD
View
Retailer 14
-
£2,391 GBP
View
Price last confirmed 14 days ago
B
Retailer 15
-
£2,403 GBP
$3,220 USD
View
Retailer 16
-
£2,850 GBP
A$5,874 AUD
View
Price last confirmed 24 days ago
Most Expensive
B
Do Amore Diamonds
27-770C863E8 · Nov 1
£4,112 GBP
$5,510 USD
View
16 more retailers have this diamond
Prices start from £463 GBPSave up to £3,649 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
1.67ct Marquise
£463 GBP