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Round|Lab Grown|IGI

1.69ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG425066365

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425066365

Diamond specifications and retailer prices

From £709 GBP
$950 USD
As of October 30, 2026
Save £2,584 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,293 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.69ct lab-grown round diamond

This 1.69ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425066365 or 425066365. Listed at 11 retailers as of October 29, 2026, with prices from £709 to £3,293, a £2,584 spread on the same certified stone. MOH London lists it at £3,293. 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

1.69
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425066365
Dimensions7.65 × 7.57 × 4.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.65 mm7.57 mm1.69 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425066365
Side View
Table 58.5%Crown 35.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.6%

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: £3,293 GBP|Low: £709 GBP|High: £3,315 GBP|Avg: £1,466 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
October 30, 2026
Retailer 2£709 GBP
Retailer 8£878 GBP
Retailer 11£956 GBP
Retailer 13£983 GBP
Retailer 9£1,019 GBP
Retailer 14£1,019 GBP
Retailer 5£1,106 GBP
Retailer 7£1,186 GBP
Retailer 4£1,452 GBP
Retailer 10£1,618 GBP
Retailer 12£1,911 GBP
Retailer 3£2,008 GBP
Retailer 6£2,280 GBP
MOH London£3,293 GBP

36 data points across 14 retailers

11 retailers£709 GBP to £3,293 GBP

A
Cheapest Retailer
-
£709 GBP
$950 USD
B+
Retailer 2
-
£878 GBP
$1,177 USD
View
B+
Retailer 3
-
£956 GBP
$1,281 USD
View
B+
Retailer 4
-
£983 GBP
$1,317 USD
View
Final sale: no returns
Retailer 5
-
£1,019 GBP
$1,366 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,019 GBP
$1,366 USD
View
B+
Retailer 7
-
£1,186 GBP
View
B
Retailer 8
-
£1,618 GBP
$2,168 USD
View
B
Retailer 9
-
£1,911 GBP
$2,560 USD
View
B
Retailer 10
-
£2,008 GBP
$2,691 USD
View
Most Expensive
B
MOH London
LG425066365 · Oct 29
£3,293 GBP
View
10 more retailers have this diamond
Prices start from £709 GBPSave up to £2,584 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
1.69ct Round
£709 GBP