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Princess|Lab Grown|IGI

1.61ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG584378273

Shape and cutting style on the report: Princess cut

Certificate IGI LG584378273

Diamond specifications and retailer prices

From £154 GBP
$206 USD
As of October 27, 2026
Save £1,322 GBP (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,475 GBP at Do Amore Diamonds · As of October 29, 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 LG584378273 or 584378273. Listed at 9 retailers as of October 27, 2026, with prices from £154 to £1,475, a £1,322 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

1.61
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.5°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG584378273
Dimensions6.40 × 6.35 × 4.50 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.40 mm6.35 mm1.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG584378273
Side View
Table 72.0%Crown 47.5°Girdle: MediumPavilion 38.7°Culet: NoneDepth 70.9%

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 27
Current: £1,475 GBP|Low: £154 GBP|High: £1,505 GBP|Avg: £600 GBP|-1.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 25, 2026
Retailer 7£154 GBP
Retailer 5£178 GBP
Retailer 9£329 GBP
Retailer 4£355 GBP
Retailer 3£420 GBP
Retailer 11£522 GBP
Retailer 12£603 GBP
Retailer 6£614 GBP
Retailer 8£645 GBP
Retailer 10£675 GBP
Retailer 2£843 GBP
Do Amore Diamonds£1,475 GBP

19 data points across 12 retailers

9 retailers£154 GBP to £1,475 GBP

A
Cheapest Retailer
-
£154 GBP
$206 USD
A
Retailer 2
-
£178 GBP
$239 USD
View
B+
Retailer 3
-
£329 GBP
$442 USD
View
Retailer 4
-
£614 GBP
$824 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£645 GBP
$865 USD
View
Price last confirmed 9 days ago
Retailer 6
-
£663 GBP
$890 USD
View
Price last confirmed 29 days ago
B+
Retailer 7
-
£675 GBP
$906 USD
View
Retailer 8
-
£843 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Do Amore Diamonds
27-2D45FC263 · Oct 29
£1,475 GBP
$1,980 USD
View
8 more retailers have this diamond
Prices start from £154 GBPSave up to £1,322 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 Princess
£154 GBP