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Round|Lab Grown|IGI

6.30ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG618434503

Shape and cutting style on the report: Round brilliant

Certificate IGI LG618434503

Diamond specifications and retailer prices

From $8,921 USD
As of November 1, 2026
Save $15,182 USD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $55,670 USD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 6.3ct lab-grown round diamond

This 6.3ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG618434503 or 618434503. Listed at 15 retailers as of November 1, 2026, with a 170% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.30
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618434503
Dimensions11.83 × 11.92 × 7.27 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
11.83 mm11.92 mm6.30 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618434503
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 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: $55,670 USD|Low: $7,399 USD|High: $56,840 USD|Avg: $16,746 USD|-2.1%
Do Amore Diamonds
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
November 2, 2026
Retailer 14$8,921 USD
Retailer 15$9,028 USD
Retailer 5$9,278 USD
Retailer 7$10,202 USD
Retailer 4$10,706 USD
Retailer 9$10,710 USD
Retailer 11$10,789 USD
Retailer 12$10,790 USD
Retailer 3$11,329 USD
Retailer 13$11,970 USD
Retailer 10$17,310 USD
Retailer 8$18,352 USD
Retailer 2$19,637 USD
Retailer 6$24,103 USD
Do Amore Diamonds$55,670 USD

36 data points across 15 retailers

15 retailers$8,921 USD to $24,103 USD

A
Cheapest Retailer
-
$8,921 USD
A
Retailer 2
-
$9,028 USD
View
A
Retailer 3
-
$9,278 USD
View
B+
Retailer 4
-
$9,710 USD
View
B+
Retailer 5
-
$10,202 USD
View
Final sale: no returns
B+
Retailer 6
-
$10,706 USD
View
B+
Retailer 7
-
$10,710 USD
View
B+
Retailer 8
-
$10,790 USD
View
B+
Retailer 9
-
$11,329 USD
View
B+
Retailer 10
-
$11,970 USD
View
B+
Retailer 11
-
$17,310 USD
View
B+
Retailer 12
-
$18,352 USD
£14,450 GBP
View
B
Retailer 13
-
$19,637 USD
€18,702 EUR
View
B
Retailer 14
-
$24,103 USD
View
Most Expensive
Do Amore Diamonds
27-29B5A0E67 · Nov 1
$55,670 USD
View
Price under review
14 more retailers have this diamond
Prices start from $8,921 USDSave up to $15,182 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
6.30ct Round
$8,921 USD