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Oval|Lab Grown|IGI

1.71ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG445037672

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037672

Diamond specifications and retailer prices

From £627 GBP
$840 USD
As of October 29, 2026
Save £2,830 GBP (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,457 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.71ct lab-grown oval diamond

This 1.71ct lab-grown oval 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 LG445037672 or 445037672. Listed at 10 retailers as of October 29, 2026, with prices from £627 to £3,457, a £2,830 spread on the same certified stone. MOH London lists it at £3,457. 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

1.71
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037672
Dimensions9.34 × 6.71 × 4.26 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.34 mm6.71 mm1.71 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445037672
Side View
Table 57.0%Crown 36.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
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: Oct 29
Current: £3,457 GBP|Low: £627 GBP|High: £3,480 GBP|Avg: £1,829 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 2£627 GBP
Retailer 4£1,162 GBP
Retailer 7£1,245 GBP
Retailer 6£1,651 GBP
Retailer 3£1,902 GBP
Retailer 5£2,185 GBP
Retailer 8£2,695 GBP
MOH London£3,457 GBP

10 data points across 8 retailers

10 retailers£627 GBP to £3,457 GBP

A
Cheapest Retailer
-
£627 GBP
$840 USD
B+
Retailer 2
-
£1,038 GBP
$1,391 USD
View
B+
Retailer 3
-
£1,129 GBP
$1,513 USD
View
B+
Retailer 4
-
£1,162 GBP
$1,557 USD
View
Final sale: no returns
Retailer 5
-
£1,204 GBP
$1,613 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,204 GBP
$1,613 USD
View
B
Retailer 7
-
£1,902 GBP
$2,548 USD
View
B
Retailer 8
-
£2,185 GBP
$2,928 USD
View
B
Retailer 9
-
£2,257 GBP
$3,024 USD
View
Most Expensive
B
MOH London
LG445037672 · Oct 29
£3,457 GBP
View
9 more retailers have this diamond
Prices start from £627 GBPSave up to £2,830 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
1.71ct Oval
£627 GBP