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Round|Lab Grown|IGI

1.63ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG665402740

Shape and cutting style on the report: Round brilliant

Certificate IGI LG665402740

Diamond specifications and retailer prices

From £172 GBP
$231 USD
As of November 1, 2026
Save £1,303 GBP (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,475 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.63ct lab-grown round diamond

This 1.63ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG665402740 or 665402740. Listed at 13 retailers as of November 1, 2026, with prices from £172 to £1,475, a £1,303 spread on the same certified stone. Do Amore Diamonds lists it at £1,475. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.63
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665402740
Dimensions7.63 × 7.57 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type II
Top View
7.63 mm7.57 mm1.63 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665402740
Side View
Table 55.0%Crown 33°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: Nov 1
Current: £1,475 GBP|Low: £140 GBP|High: £1,475 GBP|Avg: £554 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 7£172 GBP
Retailer 9£281 GBP
Retailer 6£329 GBP
Retailer 8£385 GBP
Retailer 2£388 GBP
Retailer 4£544 GBP
Retailer 5£614 GBP
Retailer 3£842 GBP
Do Amore Diamonds£1,475 GBP

40 data points across 9 retailers

13 retailers£172 GBP to £1,475 GBP

A
Cheapest Retailer
-
£172 GBP
$231 USD
Final sale: no returns
Retailer 2
-
£190 GBP
$255 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
£190 GBP
$255 USD
View
A
Retailer 4
-
£281 GBP
$377 USD
View
B+
Retailer 5
-
£329 GBP
$442 USD
View
A
Retailer 6
-
£385 GBP
$516 USD
View
A
Retailer 7
-
£388 GBP
View
Retailer 8
-
£544 GBP
$730 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
£614 GBP
$824 USD
View
Retailer 10
-
£675 GBP
$906 USD
View
Price last confirmed 26 days ago
B
Retailer 11
-
£675 GBP
$906 USD
View
B
Retailer 12
-
£842 GBP
View
Most Expensive
B
Do Amore Diamonds
27-037A0F266 · Nov 2
£1,475 GBP
$1,980 USD
View
12 more retailers have this diamond
Prices start from £172 GBPSave up to £1,303 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
1.63ct Round
£172 GBP