CaratHunter
Plans
Round|Lab Grown|IGI

3.16ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG628435520

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628435520

Diamond specifications and retailer prices

From $1,273 USD
As of October 29, 2026
Save $3,908 USD (75%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,181 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.16ct lab-grown round diamond

This 3.16ct lab-grown round sits in the three to 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 LG628435520 or 628435520. Listed at 19 retailers as of October 29, 2026, with prices from $1,273 to $5,181, a $3,908 spread on the same certified stone. Taylor and Hart lists it at $5,181. 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

3.16
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628435520
Dimensions9.41 × 9.49 × 5.73 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
9.41 mm9.49 mm3.16 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628435520
Side View
Table 59.0%Crown 33.4°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.6%

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: Oct 29
Current: $2,354 USD|Low: $1,222 USD|High: $4,807 USD|Avg: $2,653 USD|+2.3%
Retailer 1
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 31, 2026
Retailer 11$1,273 USD
Retailer 4$1,425 USD
Retailer 2$1,476 USD
Retailer 10$1,650 USD
Retailer 6$1,850 USD
Retailer 7$2,072 USD
Retailer 12$2,112 USD
Retailer 1$2,354 USD
Retailer 13$2,752 USD
Retailer 8$3,428 USD
Retailer 3$4,237 USD
Retailer 5$4,617 USD
Retailer 9$4,769 USD

38 data points across 13 retailers

19 retailers$1,273 USD to $5,181 USD

A
Cheapest Retailer
-
$1,273 USD
A
Retailer 2
-
$1,385 USD
View
A
Retailer 3
-
$1,425 USD
View
Final sale: no returns
A
Retailer 4
-
$1,476 USD
View
Retailer 5
-
$1,476 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$1,650 USD
View
A
Retailer 7
-
$1,713 USD
View
A
Retailer 8
-
$1,850 USD
£1,457 GBP
View
B+
Retailer 9
-
$2,072 USD
£1,632 GBP
View
B+
Retailer 10
-
$2,112 USD
View
B+
Retailer 11
-
$2,354 USD
€2,242 EUR
View
B+
Retailer 12
-
$2,681 USD
View
B+
Retailer 13
-
$2,752 USD
View
B+
Retailer 14
-
$2,767 USD
View
B+
Retailer 15
-
$3,428 USD
ZAR 55,384 ZAR
View
B
Retailer 16
-
$4,237 USD
View
B
Retailer 17
-
$4,617 USD
View
B
Retailer 18
-
$4,769 USD
£3,755 GBP
View
Most Expensive
B
Taylor and Hart
3FX1RXI · Oct 30
$5,181 USD
View
18 more retailers have this diamond
Prices start from $1,273 USDSave up to $3,908 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
3.16ct Round
$1,273 USD