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Round|Lab Grown|GIA

5.09ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 2488088636

Certificate GIA 2488088636

Diamond specifications and retailer prices

From $1,932 SGD
$1,511 USD
As of October 26, 2026
Save $4,475 SGD (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,964 SGD at Brilliant Earth · As of October 10, 2026
View at Brilliant Earth

About this 5.09ct lab-grown round diamond

This 5.09ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2488088636. Listed at 16 retailers as of October 26, 2026, with a 232% 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

5.09
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 2488088636
Dimensions11.07 × 11.02 × 6.77 mm
L/W Ratio1.00
Star length45%
Top View
11.07 mm11.02 mm5.09 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2488088636
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

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 26
Current: $7,964 SGD|Low: $1,854 SGD|High: $7,964 SGD|Avg: $3,428 SGD
Brilliant Earth
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
Retailer 17
October 29, 2026
Retailer 16$1,932 SGD
Retailer 7$2,102 SGD
Retailer 9$2,162 SGD
Retailer 8$2,240 SGD
Retailer 5$2,461 SGD
Retailer 2$2,569 SGD
Retailer 6$2,613 SGD
Retailer 3$2,913 SGD
Retailer 11$2,981 SGD
Retailer 12$3,096 SGD
Retailer 10$3,385 SGD
Retailer 15$3,531 SGD
Retailer 17$3,605 SGD
Retailer 14$3,989 SGD
Retailer 4$4,200 SGD
Retailer 13$6,407 SGD
Brilliant Earth$7,964 SGD

36 data points across 17 retailers

16 retailers$1,932 SGD to $6,407 SGD

B+
Cheapest Retailer
-
$1,932 SGD
$1,511 USD
B+
Retailer 2
-
$2,102 SGD
$1,644 USD
View
B+
Retailer 3
-
$2,240 SGD
$1,752 USD
View
B+
Retailer 4
-
$2,461 SGD
$1,925 USD
View
B+
Retailer 5
-
$2,569 SGD
HK$15,700 HKD
View
B+
Retailer 6
-
$2,613 SGD
$2,044 USD
View
B+
Retailer 7
-
$2,913 SGD
$2,279 USD
View
B+
Retailer 8
-
$2,981 SGD
£1,836 GBP
View
B+
Retailer 9
-
$3,096 SGD
£1,907 GBP
View
B+
Retailer 10
-
$3,385 SGD
€2,522 EUR
View
B
Retailer 11
-
$3,531 SGD
$2,762 USD
View
B
Retailer 12
-
$3,605 SGD
$2,820 USD
View
Retailer 13
-
$3,989 SGD
$3,120 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$4,200 SGD
$3,285 USD
View
B
Retailer 15
-
$6,407 SGD
£3,946 GBP
View
Most Expensive
Brilliant Earth
14415260A · Oct 10
$7,964 SGD
$6,230 USD
View
Price last confirmed 20 days ago
15 more retailers have this diamond
Prices start from $1,932 SGDSave up to $4,475 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+
5.09ct Round
$1,932 SGD