Oval|Lab Grown|IGI

1.21ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG803681088

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG803681088

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of November 1, 2026
Save £1,925 GBP (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,341 GBP at Brilliant Earth · As of October 25, 2026
View at Brilliant Earth

About this 1.21ct lab-grown oval diamond

This 1.21ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG803681088 or 803681088. Listed at 24 retailers as of November 1, 2026, with a 997% 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

1.21
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle29.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803681088
Dimensions7.73 × 5.39 × 3.59 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
7.73 mm5.39 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803681088
Side View
Table 62.0%Crown 37.5°Girdle: THN-THKPavilion 29.4°Culet: NoneDepth 66.6%

Caratlytics Score

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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: Nov 1
Current: £2,118 GBP|Low: £186 GBP|High: £2,341 GBP|Avg: £582 GBP|-0.7%
Brilliant Earth
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
November 3, 2026
Retailer 3£193 GBP
Retailer 7£224 GBP
Retailer 4£239 GBP
Retailer 9£247 GBP
Retailer 15£358 GBP
Retailer 12£389 GBP
Retailer 5£399 GBP
Retailer 10£413 GBP
Retailer 8£458 GBP
Retailer 2£587 GBP
Retailer 14£736 GBP
Retailer 6£770 GBP
Retailer 11£959 GBP
Retailer 13£1,163 GBP
Brilliant Earth£2,118 GBP

37 data points across 15 retailers

24 retailers£193 GBP to £2,118 GBP

A
Cheapest Retailer
-
£193 GBP
$259 USD
A
Retailer 2
-
£216 GBP
$290 USD
View
Final sale: no returns
A
Retailer 3
-
£224 GBP
$300 USD
View
Retailer 4
-
£239 GBP
$321 USD
View
Price last confirmed 18 days ago
A
Retailer 5
-
£239 GBP
$321 USD
View
A
Retailer 6
-
£247 GBP
View
A
Retailer 7
-
£358 GBP
$480 USD
View
A
Retailer 8
-
£389 GBP
€497 EUR
View
A
Retailer 9
-
£399 GBP
$535 USD
View
A
Retailer 10
-
£413 GBP
ZAR 8,958 ZAR
View
A
Retailer 11
-
£427 GBP
$572 USD
View
A
Retailer 12
-
£458 GBP
View
B+
Retailer 13
-
£576 GBP
$772 USD
View
B+
Retailer 14
-
£587 GBP
A$1,212 AUD
View
B+
Retailer 15
-
£736 GBP
$987 USD
View
B+
Retailer 16
-
£770 GBP
$1,032 USD
View
B+
Retailer 17
-
£772 GBP
SGD 1,399 SGD
View
B+
Retailer 18
-
£808 GBP
$1,084 USD
View
B+
Retailer 19
-
£959 GBP
View
B
Retailer 20
-
£1,030 GBP
$1,382 USD
View
Retailer 21
-
£1,163 GBP
$1,560 USD
View
Price last confirmed 15 days ago
B
Retailer 22
-
£1,714 GBP
View
B
Retailer 23
-
£2,118 GBP
$2,840 USD
View
Most Expensive
Brilliant Earth
21656525A · Oct 25
£2,341 GBP
$3,140 USD
View
Price last confirmed 9 days ago
23 more retailers have this diamond
Prices start from £193 GBPSave up to £1,925 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
1.21ct Oval
£193 GBP