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Round|Lab Grown|IGI

1.00ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG487174470

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487174470

Diamond specifications and retailer prices

From $652 SGD
$510 USD
As of October 29, 2026
Save $1,018 SGD (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,527 SGD at Friendly Diamonds · As of October 30, 2026
View at Friendly Diamonds

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487174470 or 487174470. Listed at 12 retailers as of October 29, 2026, with a 156% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.9°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487174470
Dimensions6.40 × 6.36 × 3.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.40 mm6.36 mm1.00 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG487174470
Side View
Table 60.5%Crown 33.9°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,527 SGD|Low: $652 SGD|High: $4,078 SGD|Avg: $1,572 SGD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5$652 SGD
Retailer 4$885 SGD
Retailer 8$991 SGD
Retailer 6$1,027 SGD
Retailer 9$1,253 SGD
Retailer 10$1,487 SGD
Retailer 2$1,638 SGD
Retailer 7$1,670 SGD
Friendly Diamonds$2,527 SGD
Retailer 3$4,051 SGD

39 data points across 10 retailers

12 retailers$652 SGD to $1,670 SGD

B+
Cheapest Retailer
-
$652 SGD
$510 USD
B
Retailer 2
-
$885 SGD
$692 USD
View
B
Retailer 3
-
$963 SGD
$753 USD
View
B
Retailer 4
-
$991 SGD
$775 USD
View
Final sale: no returns
Retailer 5
-
$1,027 SGD
$803 USD
View
Price last confirmed 15 days ago
B
Retailer 6
-
$1,027 SGD
$803 USD
View
B
Retailer 7
-
$1,253 SGD
$980 USD
View
B
Retailer 8
-
$1,638 SGD
£1,009 GBP
View
B
Retailer 9
-
$1,670 SGD
$1,306 USD
View
Most Expensive
Friendly Diamonds
1595461 · Oct 30
$2,527 SGD
$1,977 USD
View
Price under review
9 more retailers have this diamond
Prices start from $652 SGDSave up to $1,018 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.

B+
1.00ct Round
$652 SGD