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Round|Lab Grown|IGI

1.51ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG712551703

Shape and cutting style on the report: Round brilliant

Certificate IGI LG712551703

Diamond specifications and retailer prices

From $430 USD
As of October 30, 2026
Save $3,830 USD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,260 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG712551703 or 712551703. Listed at 22 retailers as of October 29, 2026, with prices from $430 to $4,260, a $3,830 spread on the same certified stone. Do Amore Diamonds lists it at $4,260. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712551703
Dimensions7.36 × 7.41 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
7.36 mm7.41 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712551703
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.4%

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 30
Current: $4,260 USD|Low: $317 USD|High: $4,260 USD|Avg: $1,526 USD|+20.3%
Do Amore Diamonds
Retailer 2
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Retailer 19
October 31, 2026
Retailer 13$430 USD
Retailer 11$536 USD
Retailer 7$719 USD
Retailer 18$735 USD
Retailer 6$794 USD
Retailer 10$829 USD
Retailer 5$928 USD
Retailer 15$1,019 USD
Retailer 17$1,129 USD
Retailer 14$1,530 USD
Retailer 3$1,600 USD
Retailer 12$1,689 USD
Retailer 2$1,872 USD
Retailer 8$2,075 USD
Retailer 19$2,090 USD
Retailer 4$2,226 USD
Retailer 9$2,252 USD
Retailer 16$2,757 USD
Do Amore Diamonds$4,260 USD

44 data points across 19 retailers

22 retailers$430 USD to $4,260 USD

A
Cheapest Retailer
-
$430 USD
A
Retailer 2
-
$480 USD
View
A
Retailer 3
-
$536 USD
View
Final sale: no returns
Retailer 4
-
$595 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
$595 USD
View
A
Retailer 6
-
$719 USD
View
A
Retailer 7
-
$735 USD
View
A
Retailer 8
-
$794 USD
HK$6,200 HKD
View
A
Retailer 9
-
$829 USD
View
A
Retailer 10
-
$928 USD
View
B+
Retailer 11
-
$1,019 USD
£802 GBP
View
B+
Retailer 12
-
$1,129 USD
ZAR 18,241 ZAR
View
B+
Retailer 13
-
$1,530 USD
A$2,354 AUD
View
B+
Retailer 14
-
$1,600 USD
View
B
Retailer 15
-
$1,689 USD
View
B
Retailer 16
-
$1,872 USD
SGD 2,530 SGD
View
B
Retailer 17
-
$2,075 USD
View
B
Retailer 18
-
$2,090 USD
View
B
Retailer 19
-
$2,226 USD
View
B
Retailer 20
-
$2,252 USD
View
B
Retailer 21
-
$2,757 USD
£2,171 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C7713E73C · Oct 29
$4,260 USD
View
21 more retailers have this diamond
Prices start from $430 USDSave up to $3,830 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
1.51ct Round
$430 USD