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Round|Lab Grown|IGI

1.72ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG440012013

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012013

Diamond specifications and retailer prices

From £716 GBP
$960 USD
As of October 30, 2026
Save £2,758 GBP (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,475 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1.72ct lab-grown round diamond

This 1.72ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012013 or 440012013. Listed at 11 retailers as of October 25, 2026, with prices from £716 to £3,475, a £2,758 spread on the same certified stone. MOH London lists it at £3,475. 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

1.72
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012013
Dimensions7.83 × 7.86 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.83 mm7.86 mm1.72 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012013
Side View
Table 59.0%Crown 32.1°GirdlePavilion 40.2°Culet: NoneDepth 58.5%

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: £3,475 GBP|Low: £716 GBP|High: £3,516 GBP|Avg: £1,718 GBP|+0.1%
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
October 30, 2026
Retailer 2£716 GBP
Retailer 7£1,048 GBP
Retailer 10£1,140 GBP
Retailer 12£1,172 GBP
Retailer 8£1,215 GBP
Retailer 13£1,215 GBP
Retailer 6£1,523 GBP
Retailer 4£1,664 GBP
Retailer 9£1,919 GBP
Retailer 3£2,205 GBP
Retailer 11£2,278 GBP
Retailer 5£2,721 GBP
MOH London£3,475 GBP

21 data points across 13 retailers

11 retailers£716 GBP to £3,475 GBP

A
Cheapest Retailer
-
£716 GBP
$960 USD
B+
Retailer 2
-
£1,048 GBP
$1,404 USD
View
B+
Retailer 3
-
£1,140 GBP
$1,527 USD
View
B+
Retailer 4
-
£1,172 GBP
$1,571 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,215 GBP
$1,628 USD
View
Retailer 6
-
£1,215 GBP
$1,628 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,523 GBP
View
B
Retailer 8
-
£1,919 GBP
$2,571 USD
View
B
Retailer 9
-
£2,205 GBP
$2,955 USD
View
B
Retailer 10
-
£2,278 GBP
$3,052 USD
View
Most Expensive
B
MOH London
LG440012013 · Oct 25
£3,475 GBP
View
10 more retailers have this diamond
Prices start from £716 GBPSave up to £2,758 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
1.72ct Round
£716 GBP