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Princess|Lab Grown|IGI

3.51ct D VS1 Princess Lab Grown Diamond

ID • D/VS1 • IGI LG698569139

Shape and cutting style on the report: Princess cut

Certificate IGI LG698569139

Diamond specifications and retailer prices

From £574 GBP
$770 USD
As of November 2, 2026
Save £4,523 GBP (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,723 GBP at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 3.51ct lab-grown princess diamond

This 3.51ct lab-grown princess sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG698569139 or 698569139. Listed at 22 retailers as of October 31, 2026, with a 788% 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

3.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698569139
Dimensions8.36 × 8.11 × 5.62 mm
L/W Ratio1.03
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.36 mm8.11 mm3.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698569139
Side View
Table 68.0%Crown 44.7°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 69.3%

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 2
Current: £5,723 GBP|Low: £574 GBP|High: £5,783 GBP|Avg: £2,068 GBP|-1.0%
Brilliant Earth
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
November 1, 2026
Retailer 16£574 GBP
Retailer 5£642 GBP
Retailer 13£797 GBP
Retailer 6£830 GBP
Retailer 9£1,129 GBP
Retailer 15£1,583 GBP
Retailer 10£1,658 GBP
Retailer 12£1,705 GBP
Retailer 11£2,003 GBP
Retailer 8£2,033 GBP
Retailer 7£2,225 GBP
Retailer 3£2,249 GBP
Retailer 14£2,541 GBP
Retailer 2£2,753 GBP
Retailer 4£5,097 GBP
Brilliant Earth£5,723 GBP

44 data points across 16 retailers

22 retailers£574 GBP to £5,097 GBP

A
Cheapest Retailer
-
£574 GBP
$770 USD
A
Retailer 2
-
£624 GBP
$838 USD
View
A
Retailer 3
-
£642 GBP
$861 USD
View
Final sale: no returns
A
Retailer 4
-
£665 GBP
$893 USD
View
Retailer 5
-
£665 GBP
$893 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
£797 GBP
$1,070 USD
View
A
Retailer 7
-
£938 GBP
$1,259 USD
View
B+
Retailer 8
-
£1,014 GBP
$1,361 USD
View
B+
Retailer 9
-
£1,129 GBP
View
B+
Retailer 10
-
£1,583 GBP
$2,124 USD
View
B+
Retailer 11
-
£1,658 GBP
A$3,424 AUD
View
B+
Retailer 12
-
£1,705 GBP
ZAR 36,971 ZAR
View
B+
Retailer 13
-
£2,003 GBP
A$4,136 AUD
View
B
Retailer 14
-
£2,033 GBP
View
B
Retailer 15
-
£2,065 GBP
$2,771 USD
View
B
Retailer 16
-
£2,225 GBP
$2,986 USD
View
B
Retailer 17
-
£2,249 GBP
$3,018 USD
View
Retailer 18
-
£2,541 GBP
$3,410 USD
View
Price last confirmed 15 days ago
B
Retailer 19
-
£2,621 GBP
$3,518 USD
View
B
Retailer 20
-
£2,753 GBP
View
B
Retailer 21
-
£5,097 GBP
$6,840 USD
View
Most Expensive
Brilliant Earth
18610676A · Oct 21
£5,723 GBP
$7,680 USD
View
Price under review
21 more retailers have this diamond
Prices start from £574 GBPSave up to £4,523 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
3.51ct Princess
£574 GBP