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Princess|Lab Grown|IGI

1.61ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG389924481

Shape and cutting style on the report: Princess cut

Certificate IGI LG389924481

Diamond specifications and retailer prices

From £491 GBP
As of October 27, 2026
Save £526 GBP (52%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,803 GBP at Do Amore Diamonds · As of October 26, 2026
View at Do Amore Diamonds

About this 1.61ct lab-grown princess diamond

This 1.61ct lab-grown princess 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 LG389924481 or 389924481. Listed at 12 retailers as of October 27, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.61
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG389924481
Dimensions6.43 × 6.35 × 4.49 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
6.43 mm6.35 mm1.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG389924481
Side View
Table 71.0%Crown 40.6°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 70.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: £1,803 GBP|Low: £311 GBP|High: £1,803 GBP|Avg: £734 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 6£311 GBP
Retailer 3£313 GBP
Retailer 7£417 GBP
Retailer 2£491 GBP
Retailer 9£668 GBP
Retailer 5£774 GBP
Retailer 10£902 GBP
Retailer 8£1,017 GBP
Retailer 4£1,116 GBP
Do Amore Diamonds£1,803 GBP

28 data points across 10 retailers

12 retailers£491 GBP to £1,017 GBP

Retailer 1
-
£160 GBP
$215 USD
Price last confirmed 41 days ago
Retailer 2
-
£196 GBP
$263 USD
View
Price last confirmed 40 days ago
Retailer 3
-
£311 GBP
$417 USD
View
Price last confirmed 8 days ago
Retailer 4
-
£313 GBP
$420 USD
View
Price last confirmed 6 days ago
Retailer 5
-
£417 GBP
$559 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£491 GBP
View
Retailer 7
-
£668 GBP
$897 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£774 GBP
$1,039 USD
View
Price last confirmed 7 days ago
Retailer 9
-
£902 GBP
$1,211 USD
View
Price last confirmed 7 days ago
B
Retailer 10
-
£1,017 GBP
$1,364 USD
View
B
Retailer 11
-
£1,116 GBP
View
Price last confirmed 7 days ago
Most Expensive
Do Amore Diamonds
27-7B4218BF2 · Oct 26
£1,803 GBP
$2,420 USD
View
Price last confirmed 7 days ago
11 more retailers have this diamond
Prices start from £491 GBPSave up to £526 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+
1.61ct Princess
£491 GBP