Round|Lab Grown|IGI

1.87ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG815677291

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815677291

Diamond specifications and retailer prices

From $468 USD
As of October 28, 2026
Save $3,632 USD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,100 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.87ct lab-grown round diamond

This 1.87ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815677291 or 815677291. Listed at 24 retailers as of October 28, 2026, with prices from $468 to $4,100, a $3,632 spread on the same certified stone. Brilliant Earth lists it at $4,100. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.87
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677291
Dimensions7.96 × 7.92 × 4.82 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
7.96 mm7.92 mm1.87 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677291
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.6%

Caratlytics Score

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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: $4,100 USD|Low: $333 USD|High: $4,220 USD|Avg: $1,505 USD|-2.8%
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
October 29, 2026
Retailer 4$468 USD
Retailer 3$730 USD
Retailer 12$730 USD
Retailer 2$827 USD
Retailer 11$845 USD
Retailer 10$890 USD
Retailer 5$1,195 USD
Retailer 15$1,441 USD
Retailer 14$1,452 USD
Retailer 6$1,698 USD
Retailer 9$1,806 USD
Retailer 7$1,888 USD
Retailer 8$1,913 USD
Retailer 13$2,880 USD
Brilliant Earth$4,100 USD

34 data points across 15 retailers

24 retailers$468 USD to $4,100 USD

A
Retailer 1
-
$418 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$418 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$468 USD
View
Price last confirmed 37 days ago
A
Retailer 4
-
$468 USD
View
Final sale: no returns
A
Retailer 5
-
$511 USD
View
Price last confirmed 47 days ago
A
Retailer 6
-
$511 USD
View
Price last confirmed 34 days ago
A
Retailer 7
-
$518 USD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$518 USD
View
Price last confirmed 27 days ago
A
Retailer 9
-
$730 USD
View
A
Retailer 10
-
$730 USD
View
A
Retailer 11
-
$827 USD
€788 EUR
View
A
Retailer 12
-
$845 USD
£665 GBP
View
A
Retailer 13
-
$890 USD
ZAR 14,374 ZAR
View
A
Retailer 14
-
$1,195 USD
View
B+
Retailer 15
-
$1,441 USD
View
B+
Retailer 16
-
$1,452 USD
View
B+
Retailer 17
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$1,664 USD
View
Price last confirmed 21 days ago
B+
Retailer 18
-
$1,664 USD
View
Price last confirmed 32 days ago
B+
Retailer 19
-
$1,698 USD
View
B+
Retailer 20
-
$1,806 USD
View
B+
Retailer 21
-
$1,888 USD
View
B+
Retailer 22
-
$1,913 USD
£1,506 GBP
View
B+
Retailer 23
-
$2,880 USD
View
Most Expensive
B
Brilliant Earth
21017166A · Oct 28
$4,100 USD
View
23 more retailers have this diamond
Prices start from $468 USDSave up to $3,632 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
1.87ct Round
$468 USD