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Oval|Lab Grown|IGI

1.60ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG496118523

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG496118523

Diamond specifications and retailer prices

From £1,481 GBP
$1,984 USD
As of October 29, 2026
Save £363 GBP (20%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,820 GBP at Friendly Diamonds · As of October 31, 2026
View at Friendly Diamonds

About this 1.6ct lab-grown oval diamond

This 1.6ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496118523 or 496118523. Listed at 12 retailers as of October 29, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.60
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496118523
Dimensions9.25 × 6.60 × 3.97 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.25 mm6.60 mm1.60 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496118523
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 60.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,820 GBP|Low: £1,184 GBP|High: £4,971 GBP|Avg: £2,182 GBP
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6£1,481 GBP
Retailer 7£1,500 GBP
Retailer 11£1,611 GBP
Retailer 12£1,658 GBP
Retailer 3£1,717 GBP
Retailer 8£1,717 GBP
Retailer 4£1,843 GBP
Retailer 10£2,361 GBP
Retailer 2£2,363 GBP
Retailer 9£2,688 GBP
Friendly Diamonds£2,820 GBP
Retailer 5£4,932 GBP

42 data points across 12 retailers

12 retailers£1,481 GBP to £1,843 GBP

B
Cheapest Retailer
-
£1,481 GBP
$1,984 USD
B
Retailer 2
-
£1,500 GBP
$2,010 USD
View
B
Retailer 3
-
£1,611 GBP
$2,159 USD
View
B
Retailer 4
-
£1,658 GBP
$2,222 USD
View
Final sale: no returns
B
Retailer 5
-
£1,717 GBP
$2,301 USD
View
Retailer 6
-
£1,717 GBP
$2,301 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
£1,843 GBP
$2,470 USD
View
Retailer 8
-
£2,361 GBP
$3,163 USD
View
Price under review
Retailer 9
-
£2,363 GBP
View
Price under review
Retailer 10
-
£2,688 GBP
$3,602 USD
View
Price under review
Most Expensive
Friendly Diamonds
1587318 · Oct 31
£2,820 GBP
$3,779 USD
View
Price under review
10 more retailers have this diamond
Prices start from £1,481 GBPSave up to £363 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.

B
1.60ct Oval
£1,481 GBP