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Round|Lab Grown|IGI

1.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG836617751

Shape and cutting style on the report: Round brilliant

Certificate IGI LG836617751

Diamond specifications and retailer prices

From €272 EUR
$304 USD
As of October 30, 2026
Save €1,411 EUR (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,683 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG836617751 or 836617751. Listed at 16 retailers as of October 29, 2026, with prices from €272 to €1,683, a €1,411 spread on the same certified stone. Brilliant Earth lists it at €1,683. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617751
Dimensions6.90 × 6.95 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
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 mm6.95 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617751
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.9°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 30
Current: €1,683 EUR|Low: €272 EUR|High: €1,987 EUR|Avg: €788 EUR|-15.3%
Brilliant Earth
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
October 30, 2026
Retailer 7€272 EUR
Retailer 4€302 EUR
Retailer 3€470 EUR
Retailer 2€479 EUR
Retailer 5€499 EUR
Retailer 10€500 EUR
Retailer 12€518 EUR
Retailer 9€528 EUR
Retailer 6€707 EUR
Retailer 16€926 EUR
Retailer 14€978 EUR
Retailer 8€1,014 EUR
Retailer 13€1,074 EUR
Retailer 11€1,214 EUR
Retailer 15€1,428 EUR
Brilliant Earth€1,683 EUR

27 data points across 16 retailers

16 retailers€272 EUR to €1,683 EUR

A
Cheapest Retailer
-
€272 EUR
$304 USD
Final sale: no returns
A
Retailer 2
-
€302 EUR
$337 USD
View
A
Retailer 3
-
€470 EUR
$525 USD
View
A
Retailer 4
-
€479 EUR
£422 GBP
View
A
Retailer 5
-
€499 EUR
$557 USD
View
A
Retailer 6
-
€500 EUR
View
A
Retailer 7
-
€518 EUR
ZAR 9,344 ZAR
View
A
Retailer 8
-
€528 EUR
£465 GBP
View
A
Retailer 9
-
€707 EUR
$790 USD
View
B+
Retailer 10
-
€926 EUR
$1,034 USD
View
B+
Retailer 11
-
€978 EUR
SGD 1,477 SGD
View
B+
Retailer 12
-
€1,014 EUR
$1,133 USD
View
B+
Retailer 13
-
€1,074 EUR
$1,200 USD
View
B+
Retailer 14
-
€1,214 EUR
£1,068 GBP
View
Retailer 15
-
€1,428 EUR
$1,595 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21640958A · Oct 29
€1,683 EUR
$1,880 USD
View
15 more retailers have this diamond
Prices start from €272 EURSave up to €1,411 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
1.28ct Round
€272 EUR