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Round|Lab Grown|IGI

3.00ct D SI2 Round Lab Grown Diamond

VG • D/SI2 • IGI LG425057688

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425057688

Diamond specifications and retailer prices

From $413 USD
As of October 29, 2026
Save $3,327 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,740 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG425057688 or 425057688. Listed at 17 retailers as of October 29, 2026, with prices from $413 to $3,740, a $3,327 spread on the same certified stone. Brilliant Earth lists it at $3,740. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.00
Carat
D
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle36°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425057688
Dimensions9.09 × 9.01 × 5.80 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
9.09 mm9.01 mm3.00 ctD / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI LG425057688
Side View
Table 52.0%Crown 36°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 64.0%

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: $3,740 USD|Low: $413 USD|High: $9,151 USD|Avg: $1,502 USD
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 14$413 USD
Retailer 13$463 USD
Retailer 8$510 USD
Retailer 16$513 USD
Retailer 12$788 USD
Retailer 5$800 USD
Retailer 7$827 USD
Retailer 9$873 USD
Retailer 2$934 USD
Retailer 3$1,438 USD
Retailer 10$1,715 USD
Retailer 15$1,819 USD
Retailer 11$2,082 USD
Retailer 6$2,093 USD
Brilliant Earth$3,740 USD
Retailer 4$9,151 USD

46 data points across 16 retailers

17 retailers$413 USD to $3,740 USD

A
Cheapest Retailer
-
$413 USD
B+
Retailer 2
-
$463 USD
View
B+
Retailer 3
-
$510 USD
View
Final sale: no returns
B+
Retailer 4
-
$513 USD
View
B+
Retailer 5
-
$730 USD
HK$5,700 HKD
View
B+
Retailer 6
-
$788 USD
£621 GBP
View
B
Retailer 7
-
$800 USD
View
B+
Retailer 8
-
$814 USD
View
B+
Retailer 9
-
$827 USD
View
B+
Retailer 10
-
$873 USD
€831 EUR
View
B+
Retailer 11
-
$934 USD
£736 GBP
View
B
Retailer 12
-
$1,438 USD
View
B
Retailer 13
-
$1,715 USD
View
B
Retailer 14
-
$1,819 USD
View
B
Retailer 15
-
$2,082 USD
£1,639 GBP
View
B
Retailer 16
-
$2,093 USD
SGD 2,829 SGD
View
Most Expensive
C
Brilliant Earth
7652076Y · Oct 29
$3,740 USD
View
16 more retailers have this diamond
Prices start from $413 USDSave up to $3,327 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
3.00ct Round
$413 USD