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Radiant|Lab Grown|IGI

2.57ct D VVS2 Radiant Lab Grown Diamond

ID • D/VVS2 • IGI LG788683048

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG788683048

Diamond specifications and retailer prices

From £345 GBP
$462 USD
As of October 27, 2026
Save £1,257 GBP (78%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,940 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788683048 or 788683048. Listed at 21 retailers as of October 27, 2026, with a 365% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
D
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788683048
Dimensions9.90 × 6.62 × 4.48 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.90 mm6.62 mm2.57 ctD / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788683048
Side View
Table 66.0%Crown 45.2°Girdle: MediumPavilion 34.4°Culet: NoneDepth 67.7%

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 27
Current: £1,940 GBP|Low: £337 GBP|High: £1,974 GBP|Avg: £899 GBP|-1.7%
Rare Carat
Retailer 2
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Retailer 21
October 30, 2026
Retailer 3£345 GBP
Retailer 11£386 GBP
Retailer 18£387 GBP
Retailer 5£428 GBP
Retailer 6£428 GBP
Retailer 2£454 GBP
Retailer 17£534 GBP
Retailer 8£669 GBP
Retailer 7£692 GBP
Retailer 13£709 GBP
Retailer 21£711 GBP
Retailer 19£958 GBP
Retailer 9£958 GBP
Retailer 16£1,032 GBP
Retailer 20£1,151 GBP
Retailer 4£1,376 GBP
Retailer 10£1,399 GBP
Retailer 12£1,516 GBP
Retailer 15£1,581 GBP
Retailer 14£1,602 GBP
Rare Carat£1,940 GBP

37 data points across 21 retailers

21 retailers£345 GBP to £1,602 GBP

A
Cheapest Retailer
-
£345 GBP
$462 USD
A
Retailer 2
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£386 GBP
$517 USD
View
Final sale: no returns
A
Retailer 3
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£387 GBP
$518 USD
View
A
Retailer 4
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£428 GBP
$573 USD
View
Retailer 5
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£428 GBP
$573 USD
View
Price last confirmed 14 days ago
A
Retailer 6
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£454 GBP
View
A
Retailer 7
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£534 GBP
$715 USD
View
A
Retailer 8
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£669 GBP
$897 USD
View
A
Retailer 9
-
£692 GBP
$927 USD
View
A
Retailer 10
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£709 GBP
View
A
Retailer 11
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£711 GBP
€907 EUR
View
Retailer 12
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£958 GBP
A$1,974 AUD
View
Price last confirmed 10 days ago
A
Retailer 13
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£958 GBP
$1,284 USD
View
A
Retailer 14
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£1,032 GBP
ZAR 22,346 ZAR
View
B+
Retailer 15
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£1,151 GBP
$1,542 USD
View
B+
Retailer 16
-
£1,376 GBP
$1,844 USD
View
B+
Retailer 17
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£1,399 GBP
$1,874 USD
View
B+
Retailer 18
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£1,516 GBP
$2,031 USD
View
B+
Retailer 19
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£1,581 GBP
View
B+
Retailer 20
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£1,602 GBP
$2,146 USD
View
Most Expensive
Rare Carat
920193 · Oct 18
£1,940 GBP
$2,600 USD
View
Price last confirmed 11 days ago
20 more retailers have this diamond
Prices start from £345 GBPSave up to £1,257 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
2.57ct Radiant
£345 GBP