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Cushion|Lab Grown|IGI

3.76ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG681578729

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG681578729

Diamond specifications and retailer prices

From $2,394 USD
HK$18,700 HKD
As of October 30, 2026
Save $6,256 USD (72%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,240 USD at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 3.76ct lab-grown cushion diamond

This 3.76ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG681578729 or 681578729. Listed at 18 retailers as of October 30, 2026, with a 261% 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

3.76
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578729
Dimensions10.18 × 8.35 × 5.64 mm
L/W Ratio1.22
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
10.18 mm8.35 mm3.76 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578729
Side View
Table 58.0%Crown 35.1°Girdle: STK-THKPavilion 36.1°Culet: NoneDepth 67.5%

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 30
Current: $10,240 USD|Low: $1,667 USD|High: $12,360 USD|Avg: $5,075 USD|-11.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
Retailer 19
October 30, 2026
Retailer 14$1,780 USD
Retailer 12$1,918 USD
Retailer 6$1,968 USD
Retailer 7$2,394 USD
Retailer 13$2,752 USD
Retailer 4$2,870 USD
Retailer 17$3,009 USD
Retailer 18$3,733 USD
Retailer 10$3,947 USD
Retailer 15$4,379 USD
Retailer 8$4,963 USD
Retailer 5$5,248 USD
Retailer 19$5,474 USD
Retailer 16$6,100 USD
Retailer 11$6,713 USD
Retailer 9$6,909 USD
Retailer 2$8,650 USD
Retailer 3$9,974 USD
Do Amore Diamonds$10,240 USD

32 data points across 19 retailers

18 retailers$2,394 USD to $8,650 USD

Retailer 1
-
$1,780 USD
Price last confirmed 6 days ago
Retailer 2
-
$1,968 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$2,394 USD
HK$18,700 HKD
View
Retailer 4
-
$2,752 USD
£2,167 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
$2,768 USD
£2,180 GBP
View
Price last confirmed 15 days ago
Retailer 6
-
$2,870 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$3,733 USD
View
Retailer 8
-
$3,947 USD
£3,108 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
$4,379 USD
ZAR 70,739 ZAR
View
Price last confirmed 10 days ago
Retailer 10
-
$4,963 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$5,248 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$5,474 USD
£4,310 GBP
View
Price last confirmed 9 days ago
Retailer 13
-
$6,100 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$6,713 USD
View
Price last confirmed 8 days ago
Retailer 15
-
$6,909 USD
SGD 9,337 SGD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
$8,650 USD
View
Retailer 17
-
$9,974 USD
A$15,345 AUD
View
Price last confirmed 21 days ago
Most Expensive
Do Amore Diamonds
27-C769D8DA6 · Oct 23
$10,240 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $2,394 USDSave up to $6,256 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
3.76ct Cushion
$2,394 USD