Oval|Lab Grown|IGI

1.23ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG836619634

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836619634

Diamond specifications and retailer prices

From £202 GBP
$271 USD
As of October 30, 2026
Save £1,290 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,963 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 LG836619634 or 836619634. Listed at 16 retailers as of October 30, 2026, with a 638% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619634
Dimensions8.59 × 6.03 × 3.78 mm
L/W Ratio1.42
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
8.59 mm6.03 mm1.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619634
Side View
Table 61.0%Crown 35.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.7%

Caratlytics Score

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A+
Exceptional
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 30
Current: £1,963 GBP|Low: £202 GBP|High: £2,030 GBP|Avg: £686 GBP|-0.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 5£202 GBP
Retailer 14£224 GBP
Retailer 11£231 GBP
Retailer 8£369 GBP
Retailer 16£378 GBP
Retailer 9£384 GBP
Retailer 13£385 GBP
Retailer 2£425 GBP
Retailer 4£588 GBP
Retailer 3£723 GBP
Retailer 7£751 GBP
Retailer 6£759 GBP
Retailer 15£813 GBP
Retailer 12£903 GBP
Retailer 10£1,493 GBP
Rare Carat£1,963 GBP

29 data points across 16 retailers

16 retailers£202 GBP to £1,493 GBP

A+
Cheapest Retailer
-
£202 GBP
$271 USD
Final sale: no returns
A
Retailer 2
-
£224 GBP
$300 USD
View
A
Retailer 3
-
£231 GBP
View
Retailer 4
-
£369 GBP
$495 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
£378 GBP
$506 USD
View
A
Retailer 6
-
£384 GBP
€490 EUR
View
A
Retailer 7
-
£385 GBP
ZAR 8,334 ZAR
View
A
Retailer 8
-
£425 GBP
View
B+
Retailer 9
-
£588 GBP
$788 USD
View
B+
Retailer 10
-
£723 GBP
$969 USD
View
B+
Retailer 11
-
£751 GBP
SGD 1,359 SGD
View
B+
Retailer 12
-
£759 GBP
$1,017 USD
View
B+
Retailer 13
-
£813 GBP
$1,089 USD
View
B+
Retailer 14
-
£903 GBP
View
B
Retailer 15
-
£1,493 GBP
$2,000 USD
View
Most Expensive
Rare Carat
JH-249451 · Oct 21
£1,963 GBP
$2,630 USD
View
Price last confirmed 10 days ago
15 more retailers have this diamond
Prices start from £202 GBPSave up to £1,290 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
£202 GBP