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Oval|Lab Grown|IGI

1.02ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG687545427

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG687545427

Diamond specifications and retailer prices

From £126 GBP
As of November 5, 2026
Save £690 GBP (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £816 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.02ct lab-grown oval diamond

This 1.02ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687545427 or 687545427. Listed at 23 retailers as of November 5, 2026, with prices from £126 to £816, a £690 spread on the same certified stone. Reve Diamonds lists it at £816. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.02
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687545427
Dimensions8.08 × 5.72 × 3.53 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
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
8.08 mm5.72 mm1.02 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687545427
Side View
Table 59.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°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: Nov 5
Current: £300 GBP|Low: £125 GBP|High: £816 GBP|Avg: £348 GBP|+10.2%
Retailer 1
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
Retailer 17
Reve Diamonds
November 6, 2026
Retailer 6£126 GBP
Retailer 2£140 GBP
Retailer 15£146 GBP
Retailer 4£155 GBP
Retailer 8£155 GBP
Retailer 16£249 GBP
Retailer 10£273 GBP
Retailer 3£279 GBP
Retailer 1£300 GBP
Retailer 17£336 GBP
Retailer 12£355 GBP
Retailer 14£358 GBP
Retailer 9£448 GBP
Retailer 5£501 GBP
Retailer 13£528 GBP
Retailer 7£541 GBP
Retailer 11£725 GBP
Reve Diamonds£816 GBP

45 data points across 18 retailers

23 retailers£126 GBP to £816 GBP

Retailer 1
-
£125 GBP
Price last confirmed 45 days ago
A
Retailer 2
-
£126 GBP
View
A
Retailer 3
-
£140 GBP
View
Final sale: no returns
A
Retailer 4
-
£146 GBP
View
Retailer 5
-
£152 GBP
View
Price last confirmed 45 days ago
A
Retailer 6
-
£155 GBP
View
Retailer 7
-
£155 GBP
View
Price last confirmed 12 days ago
A
Retailer 8
-
£249 GBP
View
A
Retailer 9
-
£273 GBP
View
A
Retailer 10
-
£279 GBP
View
A
Retailer 11
-
£300 GBP
View
B+
Retailer 12
-
£336 GBP
View
B+
Retailer 13
-
£355 GBP
View
B+
Retailer 14
-
£358 GBP
View
B+
Retailer 15
-
£413 GBP
View
B+
Retailer 16
-
£448 GBP
View
B+
Retailer 17
-
£456 GBP
View
Retailer 18
-
£496 GBP
View
Price last confirmed 46 days ago
B
Retailer 19
-
£501 GBP
View
B
Retailer 20
-
£528 GBP
View
B
Retailer 21
-
£541 GBP
View
B
Retailer 22
-
£725 GBP
View
Most Expensive
B
Reve Diamonds
198BA7D6F · Nov 6
£816 GBP
$1,092 USD
View
22 more retailers have this diamond
Prices start from £126 GBPSave up to £690 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
1.02ct Oval
£126 GBP