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Princess|Lab Grown|IGI

1.38ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG683599715

Shape and cutting style on the report: Princess cut

Certificate IGI LG683599715

Diamond specifications and retailer prices

From £134 GBP
As of November 6, 2026
Save £644 GBP (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £778 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.38ct lab-grown princess diamond

This 1.38ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG683599715 or 683599715. Listed at 13 retailers as of November 2, 2026, with prices from £134 to £778, a £644 spread on the same certified stone. MOH London lists it at £778. 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

1.38
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683599715
Dimensions6.14 × 6.02 × 4.32 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.14 mm6.02 mm1.38 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683599715
Side View
Table 68.0%Crown 42°Girdle: MediumPavilion 38.5°Culet: NoneDepth 71.8%

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 6
Current: £778 GBP|Low: £134 GBP|High: £1,323 GBP|Avg: £437 GBP|-0.5%
MOH London
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 6, 2026
Retailer 11£134 GBP
Retailer 5£156 GBP
Retailer 12£166 GBP
Retailer 16£190 GBP
Retailer 2£198 GBP
Retailer 6£284 GBP
Retailer 3£295 GBP
Retailer 9£296 GBP
Retailer 13£355 GBP
Retailer 14£411 GBP
Retailer 15£535 GBP
Retailer 4£539 GBP
Retailer 10£565 GBP
Retailer 7£669 GBP
MOH London£778 GBP
Retailer 8£1,323 GBP

11 data points across 16 retailers

13 retailers£134 GBP to £778 GBP

A
Cheapest Retailer
-
£134 GBP
A
Retailer 2
-
£156 GBP
View
A
Retailer 3
-
£166 GBP
View
A
Retailer 4
-
£190 GBP
View
A
Retailer 5
-
£198 GBP
View
B+
Retailer 6
-
£295 GBP
View
A
Retailer 7
-
£296 GBP
View
B+
Retailer 8
-
£355 GBP
View
B+
Retailer 9
-
£411 GBP
View
B
Retailer 10
-
£535 GBP
View
Retailer 11
-
£539 GBP
View
Price last confirmed 9 days ago
B
Retailer 12
-
£565 GBP
View
Most Expensive
B
MOH London
LG683599715 · Nov 2
£778 GBP
View
12 more retailers have this diamond
Prices start from £134 GBPSave up to £644 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
1.38ct Princess
£134 GBP