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Oval|Lab Grown|IGI

0.99ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG770686327

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770686327

Diamond specifications and retailer prices

From $134 USD
As of October 26, 2026
Save $1,257 USD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,391 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.99ct lab-grown oval diamond

This 0.99ct lab-grown oval sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770686327 or 770686327. Listed at 17 retailers as of October 26, 2026, with prices from $134 to $1,391, a $1,257 spread on the same certified stone. MOH London lists it at $1,391. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.99
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770686327
Dimensions7.87 × 5.50 × 3.41 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.87 mm5.50 mm0.99 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG770686327
Side View
Table 63.0%Crown 36.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.0%

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 26
Current: $1,391 USD|Low: $129 USD|High: $1,406 USD|Avg: $385 USD|-1.1%
MOH London
Retailer 2
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 18
October 27, 2026
Retailer 16$134 USD
Retailer 6$150 USD
Retailer 13$156 USD
Retailer 15$166 USD
Retailer 12$192 USD
Retailer 4$221 USD
Retailer 10$258 USD
Retailer 2$280 USD
Retailer 18$288 USD
Retailer 5$313 USD
Retailer 11$357 USD
Retailer 8$412 USD
Retailer 14$418 USD
Retailer 17$445 USD
Retailer 9$460 USD
Retailer 3$535 USD
Retailer 7$580 USD
MOH London$1,391 USD

31 data points across 18 retailers

17 retailers$134 USD to $1,391 USD

A
Cheapest Retailer
-
$134 USD
A
Retailer 2
-
$150 USD
View
Final sale: no returns
A
Retailer 3
-
$156 USD
View
A
Retailer 4
-
$166 USD
View
A
Retailer 5
-
$192 USD
HK$1,500 HKD
View
A
Retailer 6
-
$221 USD
£174 GBP
View
Price last confirmed 12 days ago
A
Retailer 7
-
$258 USD
View
A
Retailer 8
-
$280 USD
£220 GBP
View
B+
Retailer 9
-
$313 USD
View
A
Retailer 10
-
$357 USD
£281 GBP
View
A
Retailer 11
-
$412 USD
View
A
Retailer 12
-
$418 USD
View
B+
Retailer 13
-
$445 USD
View
B+
Retailer 14
-
$460 USD
SGD 622 SGD
View
B+
Retailer 15
-
$535 USD
View
B+
Retailer 16
-
$580 USD
View
Most Expensive
B
MOH London
LG770686327 · Oct 26
$1,391 USD
£1,095 GBP
View
16 more retailers have this diamond
Prices start from $134 USDSave up to $1,257 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
0.99ct Oval
$134 USD