Round|Lab Grown|IGI

1.71ct E FL Round Lab Grown Diamond

EX • E/FL • IGI LG816615459

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816615459

Diamond specifications and retailer prices

From $922 USD
As of October 28, 2026
Save $3,308 USD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,230 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615459 or 816615459. Listed at 8 retailers as of October 28, 2026, with prices from $922 to $4,230, a $3,308 spread on the same certified stone. Do Amore Diamonds lists it at $4,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615459
Dimensions7.65 × 7.58 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.65 mm7.58 mm1.71 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615459
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.7%

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 28
Current: $4,230 USD|Low: $440 USD|High: $5,150 USD|Avg: $1,956 USD|-13.0%
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
October 31, 2026
Retailer 4$440 USD
Retailer 10$922 USD
Retailer 7$925 USD
Retailer 13$1,015 USD
Retailer 5$1,090 USD
Retailer 12$1,172 USD
Retailer 9$1,461 USD
Retailer 2$1,482 USD
Retailer 3$2,220 USD
Retailer 8$2,727 USD
Retailer 11$2,920 USD
Retailer 6$2,990 USD
Do Amore Diamonds$4,230 USD

15 data points across 13 retailers

8 retailers$922 USD to $4,230 USD

A
Cheapest Retailer
-
$922 USD
A
Retailer 2
-
$925 USD
View
B+
Retailer 3
-
$1,461 USD
View
B+
Retailer 4
-
$1,482 USD
View
B
Retailer 5
-
$2,727 USD
£2,147 GBP
View
Retailer 6
-
$2,920 USD
View
Price last confirmed 10 days ago
B
Retailer 7
-
$2,990 USD
View
Most Expensive
B
Do Amore Diamonds
27-DD2645A57 · Oct 31
$4,230 USD
View
7 more retailers have this diamond
Prices start from $922 USDSave up to $3,308 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
1.71ct Round
$922 USD