CaratHunter
Plans
Princess|Lab Grown|IGI

3.09ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG680572713

Shape and cutting style on the report: Princess cut

Certificate IGI LG680572713

Diamond specifications and retailer prices

From £328 GBP
$439 USD
As of October 30, 2026
Save £978 GBP (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,306 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 3.09ct lab-grown princess diamond

This 3.09ct lab-grown princess sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG680572713 or 680572713. Listed at 12 retailers as of October 30, 2026, with prices from £328 to £1,306, a £978 spread on the same certified stone. NZ Jewellers lists it at £1,306. 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

3.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680572713
Dimensions8.01 × 7.93 × 5.71 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.01 mm7.93 mm3.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680572713
Side View
Table 62.0%Crown 41.3°Girdle: THN-MEDPavilion 38.7°Culet: NoneDepth 72.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,306 GBP|Low: £328 GBP|High: £3,403 GBP|Avg: £1,167 GBP
NZ Jewellers
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
October 31, 2026
Retailer 11£328 GBP
Retailer 4£367 GBP
Retailer 13£406 GBP
Retailer 15£449 GBP
Retailer 12£515 GBP
Retailer 10£556 GBP
Retailer 14£634 GBP
Retailer 3£638 GBP
Retailer 2£671 GBP
Retailer 5£758 GBP
Retailer 9£1,092 GBP
Retailer 16£1,183 GBP
NZ Jewellers£1,306 GBP
Retailer 6£2,067 GBP
Retailer 8£2,612 GBP
Retailer 7£3,403 GBP

5 data points across 16 retailers

12 retailers£328 GBP to £1,306 GBP

A
Cheapest Retailer
-
£328 GBP
$439 USD
A
Retailer 2
-
£367 GBP
$492 USD
View
A
Retailer 3
-
£406 GBP
$544 USD
View
A
Retailer 4
-
£449 GBP
HK$4,700 HKD
View
A
Retailer 5
-
£515 GBP
$690 USD
View
A
Retailer 6
-
£556 GBP
View
B+
Retailer 7
-
£634 GBP
$850 USD
View
B+
Retailer 8
-
£638 GBP
$855 USD
View
B+
Retailer 9
-
£671 GBP
View
B
Retailer 10
-
£1,092 GBP
$1,463 USD
View
B
Retailer 11
-
£1,183 GBP
$1,585 USD
View
Most Expensive
B
NZ Jewellers
9c9f768f-cab0-4aea-9be5-42084f17bc23 · Oct 31
£1,306 GBP
$1,750 USD
View
11 more retailers have this diamond
Prices start from £328 GBPSave up to £978 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
3.09ct Princess
£328 GBP