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Oval|Lab Grown|IGI

1.23ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG836621617

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836621617

Diamond specifications and retailer prices

From £181 GBP
$242 USD
As of October 29, 2026
Save £1,917 GBP (91%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,097 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836621617 or 836621617. Listed at 19 retailers as of October 29, 2026, with prices from £181 to £2,097, a £1,917 spread on the same certified stone. Brilliant Earth lists it at £2,097. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836621617
Dimensions8.80 × 6.14 × 3.67 mm
L/W Ratio1.43
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
8.80 mm6.14 mm1.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836621617
Side View
Table 62.0%Crown 36°Girdle: THN-STKPavilion 40.1°Culet: NoneDepth 59.8%

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: £2,097 GBP|Low: £181 GBP|High: £2,702 GBP|Avg: £711 GBP|-22.4%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 19
November 1, 2026
Retailer 3£181 GBP
Retailer 5£202 GBP
Retailer 16£210 GBP
Retailer 9£224 GBP
Retailer 15£224 GBP
Retailer 10£369 GBP
Retailer 18£378 GBP
Retailer 13£384 GBP
Retailer 14£385 GBP
Retailer 12£425 GBP
Retailer 4£588 GBP
Retailer 8£720 GBP
Retailer 19£723 GBP
Retailer 7£751 GBP
Retailer 6£759 GBP
Retailer 17£813 GBP
Retailer 2£899 GBP
Retailer 11£1,963 GBP
Brilliant Earth£2,097 GBP

34 data points across 19 retailers

19 retailers£181 GBP to £2,097 GBP

A
Cheapest Retailer
-
£181 GBP
$242 USD
A
Retailer 2
-
£202 GBP
$271 USD
View
Final sale: no returns
A
Retailer 3
-
£210 GBP
$281 USD
View
A
Retailer 4
-
£224 GBP
$300 USD
View
Retailer 5
-
£224 GBP
$300 USD
View
Price last confirmed 7 days ago
Retailer 6
-
£369 GBP
$495 USD
View
Price last confirmed 10 days ago
A
Retailer 7
-
£378 GBP
$506 USD
View
A
Retailer 8
-
£384 GBP
€490 EUR
View
A
Retailer 9
-
£385 GBP
ZAR 8,334 ZAR
View
A
Retailer 10
-
£425 GBP
View
B+
Retailer 11
-
£588 GBP
$788 USD
View
B+
Retailer 12
-
£720 GBP
$965 USD
View
B+
Retailer 13
-
£723 GBP
$969 USD
View
B+
Retailer 14
-
£751 GBP
SGD 1,359 SGD
View
B+
Retailer 15
-
£759 GBP
$1,017 USD
View
B+
Retailer 16
-
£813 GBP
$1,089 USD
View
B+
Retailer 17
-
£899 GBP
View
Retailer 18
-
£1,963 GBP
$2,630 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21590052A · Oct 31
£2,097 GBP
$2,810 USD
View
18 more retailers have this diamond
Prices start from £181 GBPSave up to £1,917 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
1.23ct Oval
£181 GBP