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Oval|Lab Grown|IGI

1.60ct D SI1 Oval Lab Grown Diamond

GD • D/SI1 • IGI LG550237331

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG550237331

Diamond specifications and retailer prices

From £369 GBP
$495 USD
As of October 28, 2026
Save £750 GBP (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,120 GBP at Reve Diamonds · As of October 25, 2026
View at Reve 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 standard cut grade and certified by IGI LG550237331 or 550237331. Listed at 14 retailers as of October 25, 2026, with prices from £369 to £1,120, a £750 spread on the same certified stone. Reve Diamonds lists it at £1,120. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.60
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550237331
Dimensions9.13 × 6.66 × 4.17 mm
L/W Ratio1.37
Girdle conditionFaceted
Culet sizePointed
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
9.13 mm6.66 mm1.60 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550237331
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £483 GBP|Low: £246 GBP|High: £1,120 GBP|Avg: £559 GBP|+2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 27, 2026
Retailer 8£246 GBP
Retailer 7£270 GBP
Retailer 9£274 GBP
Retailer 6£369 GBP
Retailer 2£430 GBP
Retailer 10£433 GBP
Retailer 1£483 GBP
Retailer 5£765 GBP
Retailer 4£842 GBP
Retailer 3£1,099 GBP
Reve Diamonds£1,120 GBP

22 data points across 11 retailers

14 retailers£369 GBP to £1,120 GBP

Retailer 1
-
£221 GBP
$296 USD
Price last confirmed 37 days ago
Retailer 2
-
£256 GBP
$343 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£270 GBP
$362 USD
View
Price last confirmed 33 days ago
B+
Retailer 4
-
£369 GBP
$495 USD
View
B+
Retailer 5
-
£430 GBP
$576 USD
View
B+
Retailer 6
-
£433 GBP
$580 USD
View
Retailer 7
-
£482 GBP
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£483 GBP
View
Retailer 9
-
£765 GBP
$1,025 USD
View
Price last confirmed 12 days ago
B
Retailer 10
-
£842 GBP
$1,128 USD
View
Retailer 11
-
£881 GBP
$1,180 USD
View
Price last confirmed 33 days ago
B
Retailer 12
-
£917 GBP
$1,228 USD
View
B
Retailer 13
-
£1,099 GBP
View
Most Expensive
C
Reve Diamonds
5E06BB76A · Oct 25
£1,120 GBP
$1,500 USD
View
13 more retailers have this diamond
Prices start from £369 GBPSave up to £750 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
£369 GBP