CaratHunter
Plans
Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG685512055

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685512055

Diamond specifications and retailer prices

From $189 SGD
As of November 5, 2026
Save $1,124 SGD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,313 SGD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685512055 or 685512055. Listed at 23 retailers as of November 4, 2026, with prices from $189 to $1,313, a $1,124 spread on the same certified stone. Reve Diamonds lists it at $1,313. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685512055
Dimensions6.53 × 6.49 × 3.99 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
6.53 mm6.49 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685512055
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.3%

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: Nov 5
Current: $626 SGD|Low: $188 SGD|High: $1,313 SGD|Avg: $527 SGD
Retailer 1
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
Retailer 16
Reve Diamonds
November 5, 2026
Retailer 5$189 SGD
Retailer 14$211 SGD
Retailer 8$217 SGD
Retailer 3$235 SGD
Retailer 16$235 SGD
Retailer 9$401 SGD
Retailer 2$433 SGD
Retailer 12$460 SGD
Retailer 13$524 SGD
Retailer 15$548 SGD
Retailer 7$621 SGD
Retailer 1$626 SGD
Retailer 6$754 SGD
Retailer 11$797 SGD
Retailer 4$824 SGD
Retailer 10$1,092 SGD
Reve Diamonds$1,313 SGD

44 data points across 17 retailers

23 retailers$189 SGD to $1,313 SGD

Retailer 1
-
$188 SGD
Price last confirmed 45 days ago
A
Retailer 2
-
$189 SGD
View
A
Retailer 3
-
$211 SGD
View
Final sale: no returns
Retailer 4
-
$230 SGD
View
Price last confirmed 45 days ago
Retailer 5
-
$235 SGD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$235 SGD
View
A
Retailer 7
-
$372 SGD
View
A
Retailer 8
-
$401 SGD
View
B+
Retailer 9
-
$433 SGD
View
B+
Retailer 10
-
$460 SGD
View
B+
Retailer 11
-
$511 SGD
View
Retailer 12
-
$524 SGD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$548 SGD
View
B+
Retailer 14
-
$621 SGD
View
Retailer 15
-
$626 SGD
View
Price last confirmed 21 days ago
B+
Retailer 16
-
$626 SGD
View
B+
Retailer 17
-
$634 SGD
View
Retailer 18
-
$748 SGD
View
Price last confirmed 46 days ago
B
Retailer 19
-
$754 SGD
View
B
Retailer 20
-
$797 SGD
View
B
Retailer 21
-
$824 SGD
View
B
Retailer 22
-
$1,092 SGD
View
Most Expensive
B
Reve Diamonds
C22A37157 · Nov 4
$1,313 SGD
$1,028 USD
View
22 more retailers have this diamond
Prices start from $189 SGDSave up to $1,124 SGD

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
1.05ct Round
$189 SGD