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Round|Lab Grown|IGI

2.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG768679965

Shape and cutting style on the report: Round brilliant

Certificate IGI LG768679965

Diamond specifications and retailer prices

From €255 EUR
$286 USD
As of October 29, 2026
Save €1,031 EUR (80%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: €1,286 EUR at Reve Diamonds · As of November 2, 2026
View at Reve Diamonds

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG768679965 or 768679965. Listed at 30 retailers as of October 29, 2026, with prices from €255 to €1,286, a €1,031 spread on the same certified stone. Reve Diamonds lists it at €1,286. 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

2.51
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768679965
Dimensions8.67 × 8.63 × 5.38 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.67 mm8.63 mm2.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768679965
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.2%

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 29
Current: €681 EUR|Low: €277 EUR|High: €1,329 EUR|Avg: €734 EUR|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 2, 2026
Retailer 6€277 EUR
Retailer 9€316 EUR
Retailer 4€506 EUR
Retailer 8€522 EUR
Retailer 5€540 EUR
Retailer 10€584 EUR
Retailer 1€681 EUR
Retailer 3€944 EUR
Retailer 2€1,059 EUR
Retailer 7€1,266 EUR
Reve Diamonds€1,286 EUR

41 data points across 11 retailers

30 retailers€255 EUR to €1,286 EUR

Retailer 1
-
€251 EUR
$282 USD
Price last confirmed 31 days ago
Retailer 2
-
€251 EUR
$282 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
€255 EUR
$286 USD
View
Retailer 4
-
€255 EUR
$286 USD
View
Price last confirmed 10 days ago
Retailer 5
-
€258 EUR
$289 USD
View
Price last confirmed 12 days ago
Retailer 6
-
€261 EUR
$293 USD
View
Price last confirmed 23 days ago
A
Retailer 7
-
€277 EUR
$311 USD
View
Final sale: no returns
A
Retailer 8
-
€295 EUR
$331 USD
View
Retailer 9
-
€303 EUR
$340 USD
View
Price last confirmed 27 days ago
Retailer 10
-
€303 EUR
$340 USD
View
Price last confirmed 24 days ago
Retailer 11
-
€303 EUR
$340 USD
View
Price last confirmed 31 days ago
Retailer 12
-
€316 EUR
$354 USD
View
Price last confirmed 8 days ago
A
Retailer 13
-
€316 EUR
$354 USD
View
Retailer 14
-
€320 EUR
$359 USD
View
Price last confirmed 42 days ago
Retailer 15
-
€320 EUR
$359 USD
View
Price last confirmed 12 days ago
Retailer 16
-
€325 EUR
$364 USD
View
Price last confirmed 29 days ago
Retailer 17
-
€325 EUR
$364 USD
View
Price last confirmed 31 days ago
Retailer 18
-
€325 EUR
$364 USD
View
Price last confirmed 26 days ago
B+
Retailer 19
-
€506 EUR
$568 USD
View
A
Retailer 20
-
€522 EUR
$585 USD
View
A
Retailer 21
-
€540 EUR
£477 GBP
View
A
Retailer 22
-
€584 EUR
$655 USD
View
A
Retailer 23
-
€681 EUR
$764 USD
View
B+
Retailer 24
-
€944 EUR
$1,059 USD
View
B
Retailer 25
-
€1,016 EUR
$1,139 USD
View
Retailer 26
-
€1,042 EUR
$1,169 USD
View
Price last confirmed 42 days ago
Retailer 27
-
€1,042 EUR
$1,169 USD
View
Price last confirmed 26 days ago
B
Retailer 28
-
€1,059 EUR
$1,188 USD
View
B
Retailer 29
-
€1,266 EUR
£1,118 GBP
View
Most Expensive
B
Reve Diamonds
675F98263 · Nov 2
€1,286 EUR
$1,443 USD
View
29 more retailers have this diamond
Prices start from €255 EURSave up to €1,031 EUR

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
2.51ct Round
€255 EUR