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Round|Lab Grown|IGI

6.05ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG780667858

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780667858

Diamond specifications and retailer prices

From $13,415 USD
As of November 1, 2026
Save $38,144 USD (74%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $51,559 USD at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 6.05ct lab-grown round diamond

This 6.05ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780667858 or 780667858. Listed at 21 retailers as of October 31, 2026, with prices from $13,415 to $51,559, a $38,144 spread on the same certified stone. Frank Darling lists it at $51,559. 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

6.05
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780667858
Dimensions11.70 × 11.74 × 7.18 mm
L/W Ratio1.00
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
11.70 mm11.74 mm6.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780667858
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $51,559 USD|Low: $13,415 USD|High: $206,917 USD|Avg: $44,667 USD|-36.0%
Frank Darling
Retailer 2
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 2, 2026
Retailer 6$13,415 USD
Retailer 3$14,957 USD
Retailer 19$15,070 USD
Retailer 15$15,316 USD
Retailer 18$16,340 USD
Retailer 17$16,463 USD
Retailer 9$16,751 USD
Retailer 11$17,350 USD
Retailer 16$17,859 USD
Retailer 4$17,949 USD
Retailer 2$21,030 USD
Retailer 12$30,082 USD
Retailer 14$30,834 USD
Retailer 13$37,060 USD
Retailer 8$47,326 USD
Retailer 5$47,745 USD
Frank Darling$51,559 USD
Retailer 7$67,010 USD
Retailer 10$132,255 USD

39 data points across 19 retailers

21 retailers$13,415 USD to $51,559 USD

A
Cheapest Retailer
-
$13,415 USD
A
Retailer 2
-
$14,957 USD
View
A
Retailer 3
-
$15,070 USD
View
A
Retailer 4
-
$15,316 USD
View
A
Retailer 5
-
$16,340 USD
View
A
Retailer 6
-
$16,463 USD
View
A
Retailer 7
-
$16,751 USD
View
Final sale: no returns
A
Retailer 8
-
$17,350 USD
View
Retailer 9
-
$17,350 USD
View
Price last confirmed 16 days ago
A
Retailer 10
-
$17,859 USD
View
A
Retailer 11
-
$17,949 USD
View
B+
Retailer 12
-
$21,030 USD
£16,559 GBP
View
B+
Retailer 13
-
$30,082 USD
£23,687 GBP
View
B+
Retailer 14
-
$30,834 USD
€29,366 EUR
View
B
Retailer 15
-
$37,060 USD
ZAR 598,714 ZAR
View
B
Retailer 16
-
$44,548 USD
View
B
Retailer 17
-
$47,326 USD
View
B
Retailer 18
-
$47,745 USD
View
Most Expensive
B
Frank Darling
FK91228LGMY · Oct 31
$51,559 USD
View
18 more retailers have this diamond
Prices start from $13,415 USDSave up to $38,144 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
6.05ct Round
$13,415 USD