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Oval|Lab Grown|IGI

0.99ct D VS1 Oval Lab Grown Diamond

ID • D/VS1 • IGI LG817635107

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG817635107

Diamond specifications and retailer prices

From £137 GBP
$184 USD
As of October 29, 2026
Save £750 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £887 GBP at Flawless Fine Jewelry · As of October 29, 2026
View at Flawless Fine Jewelry

About this 0.99ct lab-grown oval diamond

This 0.99ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817635107 or 817635107. Listed at 21 retailers as of October 29, 2026, with prices from £137 to £887, a £750 spread on the same certified stone. Flawless Fine Jewelry lists it at £887. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817635107
Dimensions8.17 × 5.50 × 3.53 mm
L/W Ratio1.49
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
8.17 mm5.50 mm0.99 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817635107
Side View
Table 62.0%Crown 36.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 64.2%

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: £887 GBP|Low: £137 GBP|High: £887 GBP|Avg: £418 GBP
Flawless Fine Jewelry
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
October 30, 2026
Retailer 13£137 GBP
Retailer 2£176 GBP
Retailer 11£220 GBP
Retailer 5£279 GBP
Retailer 15£300 GBP
Retailer 9£300 GBP
Retailer 12£308 GBP
Retailer 6£377 GBP
Retailer 3£413 GBP
Retailer 7£428 GBP
Retailer 16£459 GBP
Retailer 14£589 GBP
Retailer 8£724 GBP
Retailer 4£776 GBP
Retailer 10£854 GBP
Flawless Fine Jewelry£887 GBP

43 data points across 16 retailers

21 retailers£137 GBP to £887 GBP

A
Cheapest Retailer
-
£137 GBP
$184 USD
A
Retailer 2
-
£155 GBP
$208 USD
View
A
Retailer 3
-
£166 GBP
$222 USD
View
A
Retailer 4
-
£166 GBP
$222 USD
View
A
Retailer 5
-
£176 GBP
$236 USD
View
Final sale: no returns
A
Retailer 6
-
£220 GBP
View
A
Retailer 7
-
£263 GBP
$352 USD
View
A
Retailer 8
-
£279 GBP
€356 EUR
View
A
Retailer 9
-
£300 GBP
ZAR 6,485 ZAR
View
A
Retailer 10
-
£300 GBP
$402 USD
View
A
Retailer 11
-
£308 GBP
View
B+
Retailer 12
-
£377 GBP
$505 USD
View
B+
Retailer 13
-
£413 GBP
A$852 AUD
View
B+
Retailer 14
-
£428 GBP
$573 USD
View
B+
Retailer 15
-
£459 GBP
A$946 AUD
View
B
Retailer 16
-
£533 GBP
$714 USD
View
B
Retailer 17
-
£589 GBP
$789 USD
View
B
Retailer 18
-
£724 GBP
$970 USD
View
B
Retailer 19
-
£776 GBP
View
B
Retailer 20
-
£854 GBP
$1,144 USD
View
Most Expensive
B
Flawless Fine Jewelry
34E780ADF · Oct 29
£887 GBP
View
20 more retailers have this diamond
Prices start from £137 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.

A
0.99ct Oval
£137 GBP