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Princess|Lab Grown|IGI

16.59ct F VS1 Princess Lab Grown Diamond

EX • F/VS1 • IGI LG603337553

Shape and cutting style on the report: Princess cut

Certificate IGI LG603337553

Diamond specifications and retailer prices

From £9,364 GBP
$12,566 USD
As of November 2, 2026
Save £15,138 GBP (62%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £30,123 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 16.59ct lab-grown princess diamond

This 16.59ct lab-grown princess sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG603337553 or 603337553. Listed at 21 retailers as of November 2, 2026, with a 162% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

16.59
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603337553
Dimensions13.54 × 13.54 × 9.22 mm
L/W Ratio1.00
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
13.54 mm13.54 mm16.59 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603337553
Side View
Table 70.0%Crown 47.1°Girdle: ThickPavilion 33.9°Culet: NoneDepth 68.1%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £10,392 GBP|Low: £8,570 GBP|High: £28,861 GBP|Avg: £13,803 GBP|-12.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 2£8,927 GBP
Retailer 7£9,284 GBP
Retailer 6£9,364 GBP
Retailer 5£9,705 GBP
Retailer 8£9,997 GBP
Retailer 18£10,205 GBP
Retailer 3£10,356 GBP
Retailer 1£10,392 GBP
Retailer 9£10,615 GBP
Retailer 4£11,044 GBP
Retailer 13£12,109 GBP
Retailer 12£14,013 GBP
Retailer 16£15,221 GBP
Retailer 14£16,031 GBP
Retailer 15£17,398 GBP
Retailer 11£19,523 GBP
Retailer 17£24,502 GBP
Retailer 10£28,861 GBP

33 data points across 18 retailers

21 retailers£9,364 GBP to £24,502 GBP

Retailer 1
-
£8,927 GBP
$11,980 USD
Price last confirmed 12 days ago
Retailer 2
-
£9,284 GBP
$12,459 USD
View
Price last confirmed 13 days ago
B
Retailer 3
-
£9,364 GBP
$12,566 USD
View
Retailer 4
-
£9,705 GBP
$13,024 USD
View
Price last confirmed 12 days ago
B
Retailer 5
-
£9,997 GBP
$13,416 USD
View
Final sale: no returns
B+
Retailer 6
-
£10,205 GBP
$13,695 USD
View
Retailer 7
-
£10,356 GBP
$13,897 USD
View
Price last confirmed 21 days ago
Retailer 8
-
£10,356 GBP
$13,897 USD
View
Price last confirmed 12 days ago
B
Retailer 9
-
£10,392 GBP
$13,946 USD
View
Retailer 10
-
£10,615 GBP
$14,245 USD
View
Price last confirmed 55 days ago
B
Retailer 11
-
£11,044 GBP
$14,820 USD
View
Retailer 12
-
£11,903 GBP
$15,973 USD
View
Price last confirmed 19 days ago
B
Retailer 13
-
£12,109 GBP
View
B
Retailer 14
-
£14,013 GBP
A$28,930 AUD
View
B
Retailer 15
-
£15,221 GBP
$20,425 USD
View
B
Retailer 16
-
£16,031 GBP
ZAR 347,538 ZAR
View
B
Retailer 17
-
£17,398 GBP
€22,235 EUR
View
B
Retailer 18
-
£19,523 GBP
A$40,305 AUD
View
B
Retailer 19
-
£24,502 GBP
$32,880 USD
View
Retailer 20
-
£28,861 GBP
$38,729 USD
View
Price under review
Most Expensive
Taylor and Hart
YB5G7E1 · Oct 31
£30,123 GBP
$40,424 USD
View
Price under review
20 more retailers have this diamond
Prices start from £9,364 GBPSave up to £15,138 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+
16.59ct Princess
£9,364 GBP