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Round|Lab Grown|IGI

1.68ct D IF Round Lab Grown Diamond

FR • D/IF • IGI LG837647010

Shape and cutting style on the report: Round brilliant

Certificate IGI LG837647010

Diamond specifications and retailer prices

From £884 GBP
$1,184 USD
As of October 30, 2026
Save £1,469 GBP (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,353 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.68ct lab-grown round diamond

This 1.68ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG837647010 or 837647010. Listed at 9 retailers as of October 29, 2026, with prices from £884 to £2,353, a £1,469 spread on the same certified stone. MOH London lists it at £2,353. 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

1.68
Carat
D
Colour
IF
Clarity
Fair
Cut

Specifications

CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837647010
Dimensions7.64 × 7.69 × 4.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeLarge
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
7.64 mm7.69 mm1.68 ctD / IF
OriginLab Grown
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837647010
Side View
Table 55.0%Crown 34°Girdle: MediumPavilion 40.2°Culet: LargeDepth 57.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £2,353 GBP|Low: £305 GBP|High: £3,650 GBP|Avg: £1,343 GBP|+60.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8£318 GBP
Retailer 6£884 GBP
Retailer 2£884 GBP
Retailer 5£972 GBP
Retailer 7£1,432 GBP
Retailer 3£1,484 GBP
Retailer 9£1,492 GBP
Retailer 4£2,067 GBP
MOH London£2,353 GBP

23 data points across 9 retailers

9 retailers£884 GBP to £2,353 GBP

Retailer 1
-
£318 GBP
$426 USD
Price last confirmed 21 days ago
B
Retailer 2
-
£884 GBP
$1,184 USD
View
B
Retailer 3
-
£884 GBP
$1,185 USD
View
B
Retailer 4
-
£972 GBP
€1,240 EUR
View
B
Retailer 5
-
£1,432 GBP
$1,919 USD
View
B
Retailer 6
-
£1,484 GBP
A$3,059 AUD
View
Retailer 7
-
£1,492 GBP
$1,999 USD
View
Price last confirmed 17 days ago
B
Retailer 8
-
£2,067 GBP
$2,770 USD
View
Most Expensive
C
MOH London
LG837647010 · Oct 29
£2,353 GBP
View
8 more retailers have this diamond
Prices start from £884 GBPSave up to £1,469 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.

B
1.68ct Round
£884 GBP