Oval|Lab Grown|IGI

1.30ct D FL Oval Lab Grown Diamond

EX • D/FL • IGI LG830644628

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG830644628

Diamond specifications and retailer prices

From £251 GBP
$336 USD
As of October 26, 2026
Save £1,052 GBP (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,052 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.3ct lab-grown oval diamond

This 1.3ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830644628 or 830644628. Listed at 21 retailers as of October 26, 2026, with a 419% 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

1.30
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830644628
Dimensions8.92 × 6.19 × 3.82 mm
L/W Ratio1.44
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
8.92 mm6.19 mm1.30 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830644628
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.7%

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: Oct 26
Current: £3,052 GBP|Low: £202 GBP|High: £3,052 GBP|Avg: £834 GBP
Brilliant Earth
Retailer 2
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October 28, 2026
Retailer 23£251 GBP
Retailer 7£291 GBP
Retailer 9£310 GBP
Retailer 3£311 GBP
Retailer 6£311 GBP
Retailer 2£425 GBP
Retailer 20£481 GBP
Retailer 22£493 GBP
Retailer 21£508 GBP
Retailer 18£526 GBP
Retailer 13£554 GBP
Retailer 11£670 GBP
Retailer 10£672 GBP
Retailer 5£1,000 GBP
Retailer 12£1,032 GBP
Retailer 8£1,102 GBP
Retailer 14£1,103 GBP
Retailer 15£1,215 GBP
Retailer 17£1,248 GBP
Retailer 16£1,302 GBP
Retailer 4£1,878 GBP
Retailer 19£2,306 GBP
Brilliant Earth£3,052 GBP

39 data points across 23 retailers

21 retailers£251 GBP to £1,302 GBP

A
Cheapest Retailer
-
£251 GBP
$336 USD
Retailer 2
-
£291 GBP
$390 USD
View
Price last confirmed 8 days ago
Retailer 3
-
£311 GBP
$417 USD
View
Price last confirmed 7 days ago
Retailer 4
-
£311 GBP
$417 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£425 GBP
$570 USD
View
A
Retailer 6
-
£493 GBP
$660 USD
View
A
Retailer 7
-
£508 GBP
$680 USD
View
Retailer 8
-
£526 GBP
ZAR 11,387 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£554 GBP
View
B+
Retailer 10
-
£670 GBP
$898 USD
View
B+
Retailer 11
-
£672 GBP
$901 USD
View
Retailer 12
-
£1,000 GBP
$1,340 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
£1,032 GBP
$1,383 USD
View
B
Retailer 14
-
£1,103 GBP
CA$2,052 CAD
View
B
Retailer 15
-
£1,124 GBP
$1,506 USD
View
Retailer 16
-
£1,215 GBP
$1,628 USD
View
Price last confirmed 7 days ago
B+
Retailer 17
-
£1,248 GBP
View
B
Retailer 18
-
£1,302 GBP
$1,745 USD
View
Retailer 19
-
£1,878 GBP
$2,516 USD
View
Price last confirmed 11 days ago
Retailer 20
-
£2,306 GBP
$3,090 USD
View
Price last confirmed 13 days ago
Most Expensive
Brilliant Earth
21454383A · Oct 28
£3,052 GBP
$4,090 USD
View
Price under review
20 more retailers have this diamond
Prices start from £251 GBPSave up to £1,052 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
1.30ct Oval
£251 GBP