CaratHunter
Plans
Round|Lab Grown|IGI

0.99ct E VVS1 Round Lab Grown Diamond

ID • E/VVS1 • IGI LG770638401

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770638401

Diamond specifications and retailer prices

From $175 USD
As of October 29, 2026
Save $1,413 USD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,588 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG770638401 or 770638401. Listed at 24 retailers as of October 27, 2026, with prices from $175 to $1,588, a $1,413 spread on the same certified stone. Queensmith lists it at $1,588. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770638401
Dimensions6.37 × 6.42 × 3.90 mm
L/W Ratio1.01
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
6.37 mm6.42 mm0.99 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770638401
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $424 USD|Low: $168 USD|High: $1,024 USD|Avg: $470 USD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 12$175 USD
Retailer 3$216 USD
Retailer 2$292 USD
Retailer 7$384 USD
Retailer 8$391 USD
Retailer 6$402 USD
Retailer 1$424 USD
Retailer 4$456 USD
Retailer 9$540 USD
Retailer 11$542 USD
Retailer 10$810 USD
Retailer 5$1,017 USD

37 data points across 12 retailers

24 retailers$175 USD to $1,588 USD

A
Cheapest Retailer
-
$175 USD
A
Retailer 2
-
$195 USD
View
Final sale: no returns
A
Retailer 3
-
$202 USD
View
A
Retailer 4
-
$216 USD
View
A
Retailer 5
-
$216 USD
View
A
Retailer 6
-
$243 USD
HK$1,900 HKD
View
B+
Retailer 7
-
$292 USD
View
A
Retailer 8
-
$346 USD
View
A
Retailer 9
-
$384 USD
£303 GBP
View
A
Retailer 10
-
$391 USD
ZAR 6,318 ZAR
View
A
Retailer 11
-
$402 USD
€383 EUR
View
A
Retailer 12
-
$424 USD
£334 GBP
View
B+
Retailer 13
-
$456 USD
View
B+
Retailer 14
-
$540 USD
A$830 AUD
View
B+
Retailer 15
-
$542 USD
View
B+
Retailer 16
-
$591 USD
SGD 799 SGD
View
B
Retailer 17
-
$665 USD
View
Price last confirmed 37 days ago
B
Retailer 18
-
$696 USD
View
B
Retailer 19
-
$716 USD
View
B
Retailer 20
-
$750 USD
View
B
Retailer 21
-
$810 USD
View
Price last confirmed 12 days ago
B
Retailer 22
-
$1,017 USD
£801 GBP
View
B
Retailer 23
-
$1,112 USD
View
Most Expensive
B
Queensmith
LG770638401 · Oct 27
$1,588 USD
£1,250 GBP
View
23 more retailers have this diamond
Prices start from $175 USDSave up to $1,413 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 Round
$175 USD