Asscher|Lab Grown|IGI

3.09ct D FL Asscher Lab Grown Diamond

EX • D/FL • IGI LG839676257

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG839676257

Diamond specifications and retailer prices

From $5,037 USD
As of October 29, 2026
Save $12,871 USD (72%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $17,908 USD at Michael Trio · As of October 30, 2026
View at Michael Trio

About this 3.09ct lab-grown asscher diamond

This 3.09ct lab-grown asscher sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG839676257 or 839676257. Listed at 15 retailers as of October 29, 2026, with prices from $5,037 to $17,908, a $12,871 spread on the same certified stone. Michael Trio lists it at $17,908. 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

3.09
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839676257
Dimensions8.08 × 7.93 × 5.26 mm
L/W Ratio1.02
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
8.08 mm7.93 mm3.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839676257
Side View
Table 68.0%Crown 35.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 66.3%

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: $17,908 USD|Low: $5,037 USD|High: $18,129 USD|Avg: $8,181 USD|-1.2%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 3$5,037 USD
Retailer 13$5,255 USD
Retailer 5$5,261 USD
Retailer 10$6,182 USD
Retailer 2$6,227 USD
Retailer 6$6,773 USD
Retailer 12$6,790 USD
Retailer 4$7,361 USD
Retailer 11$8,073 USD
Retailer 8$8,497 USD
Retailer 9$10,862 USD
Retailer 7$12,115 USD
Michael Trio$17,908 USD

18 data points across 13 retailers

15 retailers$5,037 USD to $17,908 USD

A
Cheapest Retailer
-
$5,037 USD
Final sale: no returns
A
Retailer 2
-
$5,255 USD
View
Retailer 3
-
$5,261 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$6,182 USD
HK$48,300 HKD
View
B+
Retailer 5
-
$6,227 USD
£4,903 GBP
View
B+
Retailer 6
-
$6,773 USD
£5,333 GBP
View
B+
Retailer 7
-
$6,790 USD
View
B+
Retailer 8
-
$7,361 USD
£5,796 GBP
View
B+
Retailer 9
-
$8,073 USD
View
B+
Retailer 10
-
$8,497 USD
€8,092 EUR
View
B
Retailer 11
-
$9,440 USD
View
B
Retailer 12
-
$10,862 USD
£8,553 GBP
View
B
Retailer 13
-
$12,115 USD
ZAR 195,717 ZAR
View
B
Retailer 14
-
$13,020 USD
View
Most Expensive
B
Michael Trio
1817752423 · Oct 30
$17,908 USD
SGD 24,200 SGD
View
14 more retailers have this diamond
Prices start from $5,037 USDSave up to $12,871 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
3.09ct Asscher
$5,037 USD