Radiant|Lab Grown|IGI

2.55ct G VVS1 Radiant Lab Grown Diamond

ID • G/VVS1 • IGI LG780688176

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

Certificate IGI LG780688176

Diamond specifications and retailer prices

From $646 USD
As of October 30, 2026
Save $5,084 USD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $6,560 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 2.55ct lab-grown radiant diamond

This 2.55ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG780688176 or 780688176. Listed at 24 retailers as of October 30, 2026, with a 787% 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

2.55
Carat
G
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780688176
Dimensions9.75 × 6.57 × 4.48 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.75 mm6.57 mm2.55 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780688176
Side View
Table 64.0%Crown 47.2°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 68.2%

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 30
Current: $935 USD|Low: $620 USD|High: $4,540 USD|Avg: $1,898 USD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$646 USD
Retailer 3$749 USD
Retailer 10$925 USD
Retailer 1$935 USD
Retailer 5$1,326 USD
Retailer 12$1,913 USD
Retailer 7$1,963 USD
Retailer 9$2,133 USD
Retailer 11$2,175 USD
Retailer 4$2,554 USD
Retailer 6$3,170 USD
Retailer 8$3,264 USD

35 data points across 12 retailers

24 retailers$646 USD to $5,730 USD

A
Cheapest Retailer
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$646 USD
A
Retailer 2
-
$703 USD
View
A
Retailer 3
-
$722 USD
View
Final sale: no returns
A
Retailer 4
-
$749 USD
View
Retailer 5
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$749 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$925 USD
View
A
Retailer 7
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$935 USD
£736 GBP
View
A
Retailer 8
-
$1,059 USD
View
A
Retailer 9
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$1,110 USD
View
B+
Retailer 10
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$1,173 USD
View
B+
Retailer 11
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$1,326 USD
£1,044 GBP
View
B+
Retailer 12
-
$1,913 USD
View
B
Retailer 13
-
$1,963 USD
A$3,020 AUD
View
B+
Retailer 14
-
$2,133 USD
ZAR 34,461 ZAR
View
Retailer 15
-
$2,175 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$2,325 USD
View
B
Retailer 17
-
$2,554 USD
View
B
Retailer 18
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$2,576 USD
£2,028 GBP
View
B
Retailer 19
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$2,596 USD
View
B
Retailer 20
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$2,961 USD
View
B
Retailer 21
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$3,170 USD
View
B
Retailer 22
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$3,264 USD
£2,570 GBP
View
B
Retailer 23
-
$5,730 USD
View
Most Expensive
Do Amore Diamonds
23-780688176 · Oct 31
$6,560 USD
View
Price under review
23 more retailers have this diamond
Prices start from $646 USDSave up to $5,084 USD

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
2.55ct Radiant
$646 USD