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Round|Lab Grown|IGI

1.00ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG778645922

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645922

Diamond specifications and retailer prices

From $318 USD
As of October 29, 2026
Save $1,432 USD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,750 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG778645922 or 778645922. Listed at 22 retailers as of October 29, 2026, with prices from $318 to $1,750, a $1,432 spread on the same certified stone. Brilliant Earth lists it at $1,750. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645922
Dimensions6.46 × 6.50 × 3.85 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
6.46 mm6.50 mm1.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645922
Side View
Table 60.0%Crown 34.2°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.4%

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: $1,750 USD|Low: $305 USD|High: $2,240 USD|Avg: $813 USD|-21.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$318 USD
Retailer 3$394 USD
Retailer 11$530 USD
Retailer 8$550 USD
Retailer 5$627 USD
Retailer 7$677 USD
Retailer 2$697 USD
Retailer 4$701 USD
Retailer 9$971 USD
Retailer 6$1,588 USD
Brilliant Earth$1,750 USD

37 data points across 11 retailers

22 retailers$318 USD to $1,750 USD

A
Cheapest Retailer
-
$318 USD
A
Retailer 2
-
$356 USD
View
Final sale: no returns
A
Retailer 3
-
$369 USD
View
A
Retailer 4
-
$394 USD
View
A
Retailer 5
-
$394 USD
View
A
Retailer 6
-
$435 USD
HK$3,400 HKD
View
B+
Retailer 7
-
$530 USD
View
B+
Retailer 8
-
$541 USD
View
B+
Retailer 9
-
$550 USD
View
B+
Retailer 10
-
$627 USD
£494 GBP
View
B+
Retailer 11
-
$631 USD
View
B+
Retailer 12
-
$677 USD
ZAR 10,941 ZAR
View
B+
Retailer 13
-
$697 USD
€664 EUR
View
B+
Retailer 14
-
$701 USD
£552 GBP
View
B
Retailer 15
-
$971 USD
View
B
Retailer 16
-
$1,052 USD
SGD 1,421 SGD
View
B
Retailer 17
-
$1,267 USD
View
B
Retailer 18
-
$1,312 USD
View
B
Retailer 19
-
$1,417 USD
View
B
Retailer 20
-
$1,570 USD
View
B
Retailer 21
-
$1,588 USD
£1,250 GBP
View
Most Expensive
B
Brilliant Earth
18441145A · Oct 31
$1,750 USD
View
21 more retailers have this diamond
Prices start from $318 USDSave up to $1,432 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
1.00ct Round
$318 USD