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Round|Lab Grown|IGI

1.29ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG720540510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720540510

Diamond specifications and retailer prices

From €197 EUR
$219 USD
As of October 29, 2026
Save €1,857 EUR (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €2,054 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG720540510 or 720540510. Listed at 23 retailers as of October 27, 2026, with prices from €197 to €2,054, a €1,857 spread on the same certified stone. Queensmith lists it at €2,054. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720540510
Dimensions6.90 × 6.94 × 4.32 mm
L/W Ratio1.01
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
6.90 mm6.94 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720540510
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: €452 EUR|Low: €220 EUR|High: €2,246 EUR|Avg: €623 EUR|-13.5%
Retailer 1
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Retailer 19
October 29, 2026
Retailer 4€220 EUR
Retailer 9€228 EUR
Retailer 18€276 EUR
Retailer 5€328 EUR
Retailer 13€419 EUR
Retailer 11€436 EUR
Retailer 12€444 EUR
Retailer 1€452 EUR
Retailer 3€464 EUR
Retailer 14€596 EUR
Retailer 17€634 EUR
Retailer 2€648 EUR
Retailer 10€789 EUR
Retailer 19€831 EUR
Retailer 7€838 EUR
Retailer 15€978 EUR
Retailer 16€1,087 EUR
Retailer 6€1,127 EUR
Retailer 8€1,509 EUR

39 data points across 19 retailers

23 retailers€197 EUR to €2,054 EUR

A
Cheapest Retailer
-
€197 EUR
$219 USD
A
Retailer 2
-
€220 EUR
$245 USD
View
Final sale: no returns
A
Retailer 3
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€228 EUR
$254 USD
View
A
Retailer 4
-
€243 EUR
$271 USD
View
A
Retailer 5
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€243 EUR
$271 USD
View
A
Retailer 6
-
€276 EUR
HK$2,400 HKD
View
B+
Retailer 7
-
€328 EUR
$365 USD
View
A
Retailer 8
-
€419 EUR
ZAR 7,532 ZAR
View
A
Retailer 9
-
€444 EUR
View
A
Retailer 10
-
€452 EUR
£396 GBP
View
A
Retailer 11
-
€464 EUR
$516 USD
View
A
Retailer 12
-
€596 EUR
A$1,020 AUD
View
A
Retailer 13
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€634 EUR
$706 USD
View
A
Retailer 14
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€648 EUR
$721 USD
View
A
Retailer 15
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€783 EUR
$872 USD
View
B+
Retailer 16
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€789 EUR
SGD 1,186 SGD
View
B+
Retailer 17
-
€831 EUR
$925 USD
View
B+
Retailer 18
-
€838 EUR
$933 USD
View
B+
Retailer 19
-
€978 EUR
£857 GBP
View
Retailer 20
-
€1,087 EUR
$1,210 USD
View
Price last confirmed 11 days ago
B+
Retailer 21
-
€1,127 EUR
$1,254 USD
View
B+
Retailer 22
-
€1,509 EUR
$1,680 USD
View
Most Expensive
B
Queensmith
LG720540510 · Oct 27
€2,054 EUR
£1,800 GBP
View
22 more retailers have this diamond
Prices start from €197 EURSave up to €1,857 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
1.29ct Round
€197 EUR